diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 37502fab83..728a925225 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -784,6 +784,7 @@ synonym: "Komplexauge" RELATED [BTO:0001921]
 synonym: "zusammengesetztes Auge" RELATED [BTO:0001921]
 xref: BTO:0001921
 xref: HAO:0000217
+xref: IDOMAL:0002421 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: TGMA:0000024
 xref: Wikipedia:Compound_eye
 intersection_of: UBERON:0000970 ! eye
@@ -2175,6 +2176,7 @@ def: "The surface (external) layer of ectoderm which begins to proliferate short
 subset: pheno_slim
 synonym: "surface (external) ectoderm" EXACT []
 synonym: "surface ectoderm" EXACT [MP:0012532]
+xref: BTO:0006242 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0001968
 xref: EHDAA:1494
 xref: EHDAA:350
@@ -2815,6 +2817,7 @@ xref: BILS:0000106
 xref: EFO:0001322
 xref: EHDAA:27
 xref: FBdv:00005288
+xref: IDOMAL:0000302 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: NCIT:C12601
 xref: PdumDv:0000100
 xref: VHOG:0000745
@@ -4992,6 +4995,7 @@ property_value: taxon_notes "In humans it is a tendon-like structure that has de
 id: UBERON:0000353
 name: parenchyma
 def: "Functional part of an organ in the body. This is in contrast to the stroma, which refers to the structural tissue of organs, being exactly, connective tissues." [Wikipedia:Parenchyma]
+xref: BTO:0001539 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA:3015
 xref: EHDAA:3905
 xref: EHDAA:3999
@@ -6931,6 +6935,7 @@ xref: EV:0100000
 xref: FMA:7149
 xref: galen:AnatomicalSystem
 xref: HAO:0000011
+xref: IDOMAL:0002460 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: MA:0000003
 xref: NCIT:C12919
 xref: SCTID:278195005
@@ -7246,6 +7251,7 @@ name: anatomical cluster
 def: "Anatomical group whose component anatomical structures lie in close proximity to each other." [FBbt:00007277]
 subset: common_anatomy
 subset: upper_level
+xref: IDOMAL:0002461 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: VHOG:0001737
 is_a: UBERON:0034923 ! disconnected anatomical group
 relationship: present_in_taxon NCBITaxon:33090 ! Viridiplantae
@@ -7336,6 +7342,7 @@ xref: BILA:0000054
 xref: CARO:0000054
 xref: EHDAA2:0003054
 xref: HAO:0000054
+xref: IDOMAL:0002459 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: TAO:0001512
 xref: TGMA:0001846
 xref: VHOG:0001724
@@ -7974,6 +7981,7 @@ xref: EMAPA:16039
 xref: FMA:69068
 xref: GAID:963
 xref: http://neurolex.org/wiki/Category\:Embryonic_organism
+xref: IDOMAL:0000646 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: MAT:0000226
 xref: MESH:D004622
 xref: MIAA:0000019
@@ -35972,6 +35980,7 @@ synonym: "nucleus preopticus lateralis" RELATED LATIN [NeuroNames:381]
 xref: BAMS:LPO
 xref: BIRNLEX:1722
 xref: BM:Die-Hy-LPO
+xref: BTO:0006166 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:10471
 xref: EMAPA:35483
 xref: FMA:62326
@@ -36597,6 +36606,7 @@ xref: BAMS:R
 xref: BAMS:RN
 xref: BIRNLEX:1478
 xref: BM:MB-RN
+xref: BTO:0006329 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12247
 xref: EHDAA2:0004706
 xref: EMAPA:35724
@@ -39175,6 +39185,7 @@ synonym: "nucleus praeopticus medialis" RELATED LATIN [NeuroNames:380]
 synonym: "nucleus preopticus medialis" RELATED LATIN [NeuroNames:380]
 xref: BAMS:MPO
 xref: BIRNLEX:706
+xref: BTO:0006167 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:10470
 xref: DMBA:15604
 xref: EMAPA:35549
@@ -42489,6 +42500,7 @@ xref: FMA:72429
 xref: HBA:9021
 xref: MA:0001020
 xref: MBA:1052
+xref: mesh:D045042 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: neuronames:504 {source="BIRNLEX:1437"}
 xref: UMLS:C0262306 {source="BIRNLEX:1437"}
 xref: Wikipedia:Pedunculopontine_tegmental_nucleus
@@ -44772,6 +44784,7 @@ def: "Group of neurons situated on the ventral surface of the fornix at the leve
 subset: uberon_slim
 synonym: "organum subfornicale" RELATED LATIN [Wikipedia:Subfornical_organ]
 xref: BAMS:SFO
+xref: BTO:0006266 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12104
 xref: EMAPA:35830
 xref: FMA:75260
@@ -45923,6 +45936,7 @@ def: "The celiac ganglia are two large irregularly shaped masses of nerve tissue
 subset: uberon_slim
 synonym: "coeliac ganglion" EXACT [FMA:77570]
 xref: BAMS:GCE
+xref: BTO:0006296 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0000266
 xref: EHDAA:8946
 xref: EMAPA:19321
@@ -50319,6 +50333,7 @@ subset: vertebrate_core
 synonym: "vertebra bone" EXACT []
 synonym: "vertebrae" EXACT PLURAL [PHENOSCAPE:ad]
 xref: AAO:0000691
+xref: BTO:0006196 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: CALOHA:TS-2352
 xref: EFO:0001371
 xref: EMAPA:32740
@@ -50863,6 +50878,7 @@ xref: BAMS:LH
 xref: BAMS:LHA
 xref: BIRNLEX:4037
 xref: BM:Die-Hy-HLA
+xref: BTO:0006481 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EMAPA:35480
 xref: FMA:62030
 xref: GAID:640
@@ -55666,6 +55682,7 @@ xref: BAMS:MEPO
 xref: BAMS:MnPO
 xref: BIRNLEX:1208
 xref: BM:MPO
+xref: BTO:0006168 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:13063
 xref: FMA:62323
 xref: HBA:4548
@@ -57226,6 +57243,7 @@ xref: BAMS:OV
 xref: BAMS:SoC
 xref: BAMS:VOLT
 xref: BIRNLEX:1400
+xref: BTO:0006268 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12106
 xref: DMBA:15582
 xref: EMAPA:37742 {source="MA:th"}
@@ -57740,6 +57758,7 @@ xref: BAMS:P
 xref: BIRNLEX:1464
 xref: BM:CST
 xref: BM:Me-PyT
+xref: BTO:0006132 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12776
 xref: DMBA:17756
 xref: EMAPA:36600
@@ -57993,6 +58012,7 @@ synonym: "tractus rubrospinalis" RELATED LATIN [Wikipedia:Rubrospinal_tract]
 xref: BAMS:rs
 xref: BAMS:rust
 xref: BIRNLEX:1476
+xref: BTO:0006159 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12782
 xref: DMBA:17792
 xref: FMA:72640
@@ -58904,6 +58924,7 @@ synonym: "lateral occipitotemporal gyrus (heimer-83)" EXACT []
 xref: BAMS:ITG
 xref: BIRNLEX:1577
 xref: BM:Tel-ITG
+xref: BTO:0006175 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12142
 xref: FMA:61907
 xref: HBA:4147
@@ -58929,6 +58950,7 @@ synonym: "tractus olivocerebellaris" RELATED LATIN [NeuroNames:804]
 xref: BAMS:oc
 xref: BAMS:oct
 xref: BIRNLEX:1579
+xref: BTO:0006157 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12747
 xref: FMA:72638
 xref: MBA:404
@@ -59380,6 +59402,7 @@ synonym: "gyrus temporalis superior" RELATED LATIN [Wikipedia:Superior_temporal_
 xref: BAMS:STG
 xref: BIRNLEX:1648
 xref: BM:Tel-STG
+xref: BTO:0006177 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12140
 xref: EFO:0001944
 xref: FMA:61905
@@ -59431,6 +59454,7 @@ synonym: "medial temporal gyrus" RELATED [Wikipedia:Middle_temporal_gyrus]
 synonym: "middle (medial) temporal gyrus" RELATED [BAMS:MTG]
 xref: BAMS:MTG
 xref: BIRNLEX:1653
+xref: BTO:0006176 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12141
 xref: EFO:0002466
 xref: FMA:61906
@@ -65453,6 +65477,7 @@ synonym: "olfactory placodes" EXACT PLURAL []
 synonym: "placoda nasalis" EXACT LATIN []
 synonym: "placoda olfactoria" EXACT LATIN []
 xref: AAO:0011076
+xref: BTO:0006222 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EFO:0003420
 xref: EHDAA2:0001232
 xref: EHDAA:1504
@@ -65613,6 +65638,7 @@ synonym: "epitrichium" RELATED [MP:0013530]
 synonym: "EVL" RELATED [ZFA:0001185]
 synonym: "periderm" RELATED []
 synonym: "skin periderm" EXACT [EHDAA2:0001846]
+xref: BTO:0003377 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0001846
 xref: EHDAA:6538
 xref: FMA:295662
@@ -65722,6 +65748,7 @@ synonym: "archinephric duct" RELATED [VHOG:0000082]
 synonym: "ductus pronephricus" RELATED LATIN [Wikipedia:Pronephric_duct]
 synonym: "pronephric ducts" RELATED PLURAL [ZFA:0000150]
 xref: AAO:0011088
+xref: BTO:0005991 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: NCIT:C34279
 xref: SCTID:361406002
 xref: TAO:0000150
@@ -66146,6 +66173,7 @@ synonym: "Leydig's duct" RELATED [Wikipedia:Wolffian_duct]
 synonym: "renal duct" RELATED []
 synonym: "Wolffian duct" EXACT [GOC:yaf, Wikipedia:Wolffian_duct, ZFA:0000546]
 xref: AAO:0000637
+xref: BTO:0005990 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0001243
 xref: EHDAA:1590
 xref: EMAPA:16577
@@ -66551,6 +66579,7 @@ synonym: "sclerotomes" EXACT PLURAL [TAO:0001080]
 synonym: "sclerotomus" RELATED LATIN [Wikipedia:Sclerotome]
 xref: AAO:0010571
 xref: AEO:0000212
+xref: BTO:0006255 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0003439
 xref: EMAPA:31159
 xref: FMA:295652
@@ -76169,6 +76198,7 @@ synonym: "floor of mouth" EXACT [FMA:86592]
 synonym: "floor of oval cavity" EXACT []
 synonym: "floor of the oval cavity" EXACT []
 synonym: "sublingual region" NARROW [GAID:1283]
+xref: BTO:0006184 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: CALOHA:TS-2207
 xref: EFO:0001923
 xref: EMAPA:37911 {source="MA:th"}
@@ -76339,6 +76369,7 @@ comment: Design pattern notes: check whether this fits the foramen design patter
 subset: pheno_slim
 subset: vertebrate_core
 xref: AAO:0010826
+xref: BTO:0006035 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EMAPA:37868 {source="MA:th"}
 xref: FMA:75306
 xref: GAID:228
@@ -78986,6 +79017,7 @@ synonym: "choroid plexus epithelial tissue" EXACT [OBOL:automatic]
 synonym: "epithelial tissue of chorioid plexus of cerebral hemisphere" EXACT [OBOL:automatic]
 synonym: "epithelial tissue of choroid plexus" EXACT [OBOL:automatic]
 synonym: "epithelium of choroid plexus" EXACT [FMA:242811]
+xref: BTO:0006008 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EMAPA:36608
 xref: FMA:242811
 xref: MA:0000824
@@ -79406,6 +79438,7 @@ synonym: "gland of reproductive system" EXACT [OBOL:automatic]
 synonym: "reproductive gland" EXACT [MA:0001751]
 synonym: "reproductive system gland" EXACT [OBOL:automatic]
 synonym: "sex gland" EXACT [MP:0000653]
+xref: BTO:0006162 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: MA:0001751
 intersection_of: UBERON:0002530 ! gland
 intersection_of: part_of UBERON:0000990 ! reproductive system
@@ -80647,6 +80680,7 @@ synonym: "epimere mesoderm" RELATED []
 synonym: "mesenchyma dermatomiale" RELATED LATIN [Wikipedia:Dermatomal_mesenchyme]
 xref: AAO:0011028
 xref: AEO:0001017
+xref: BTO:0006248 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2_RETIRED:0003428
 xref: EHDAA:1719
 xref: EHDAA:1725
@@ -89506,6 +89540,7 @@ synonym: "otic region" RELATED []
 synonym: "periotic" RELATED []
 synonym: "periotic capsule" RELATED [VHOG:0000854]
 xref: AAO:0010143
+xref: BTO:0005981 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: SCTID:361515007
 xref: VHOG:0000854
 is_a: UBERON:0010363 ! endochondral element
@@ -101085,6 +101120,7 @@ subset: pheno_slim
 synonym: "circumventricular organ" EXACT [NLXANAT:20090312]
 synonym: "circumventricular organ of neuraxis" EXACT [FMA:84081]
 synonym: "CVO" EXACT ABBREVIATION [NLXANAT:20090312]
+xref: BTO:0006267 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EMAPA:35243
 xref: FMA:84081
 xref: MA:0002942
@@ -102852,6 +102888,7 @@ def: "Multi-tissue structure that arises from the heart rudiment and will become
 subset: vertebrate_core
 synonym: "early primitive heart tube" NARROW [EMAPA:16208]
 synonym: "primitive heart tube" EXACT [EMAPA:16215]
+xref: BTO:0006179 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EHDAA2:0001512
 xref: EHDAA:424
 xref: EHDAA:436
@@ -122821,6 +122858,7 @@ name: spinothalamic tract
 def: "A tract that originates from neurons in the spinal central gray and projects to various somatosensory nuclei of the thalamus. It is formed in the medulla by merger of the anterior spinothalamic tract and lateral spinothalamic tract (adapted from Braininfo.org)." [NLXANAT:1010017]
 xref: BAMS:spth
 xref: BAMS:stt
+xref: BTO:0006128 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:12789
 xref: MBA:871
 xref: MESH:D013133
@@ -128648,6 +128686,7 @@ synonym: "lateral line organ" BROAD [ZFA:0000243]
 synonym: "neuromast organ" EXACT [PHENOSCAPE:wd]
 synonym: "neuromasts" EXACT PLURAL [ZFA:0000243]
 xref: AAO:0001004
+xref: BTO:0006219 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EFO:0003513
 xref: TAO:0000243
 xref: ZFA:0000243
@@ -130618,6 +130657,7 @@ name: epibranchial ganglion
 def: "Cranial ganglion which develops from an epibranchial placode." [PMID:20133851, ZFIN:curator]
 comment: Epibranchial ganglia orchestrate the development of the cranial neurogenic crest
 synonym: "epibranchial ganglia" EXACT PLURAL [ZFA:0001555]
+xref: BTO:0006250 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: TAO:0001555
 xref: ZFA:0001555
 is_a: UBERON:0001714 {source="ZFA"} ! cranial ganglion
@@ -143007,6 +143047,7 @@ def: "A cartilage element that is part of a splanchnocranium." [OBOL:automatic]
 subset: efo_slim
 synonym: "pharyngeal arch cartilages" EXACT PLURAL [ZFA:0001460]
 synonym: "splanchnocranium cartilage" EXACT [ZFA:0001460]
+xref: BTO:0006051 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EFO:0003689
 xref: TAO:0001460
 xref: ZFA:0001460
@@ -149099,6 +149140,7 @@ id: UBERON:0011895
 name: endomysium
 def: "A layer of connective tissue that ensheaths a muscle fiber and is composed mostly from reticular fibers. It also contains capillaries, nerves and lymphatics. The term cardiac skeleton is sometimes considered synonymous with endomysium, but sometimes it refers to the combination of the endomysium and perimysium." [Wikipedia:Endomysium]
 synonym: "fascia of muscle fiber" EXACT [FMA:9729]
+xref: BTO:0006241 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: FMA:9729
 xref: NCIT:C32517
 xref: SCTID:91739007
@@ -149199,6 +149241,7 @@ def: "Plantaris is a vestigial structure and one of the superficial muscles of t
 subset: efo_slim
 synonym: "musculus plantaris" EXACT LATIN []
 synonym: "plantaris" EXACT [FMA:22543]
+xref: BTO:0006312 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: EFO:0001979
 xref: EMAPA:36254
 xref: FMA:22543
@@ -155101,6 +155144,7 @@ synonym: "rete mirabilia" RELATED [Wikipedia:Rete_mirabile]
 synonym: "rete mirabilis" RELATED [Wikipedia:Rete_mirabile]
 synonym: "retie mirabilia" RELATED PLURAL [Wikipedia:Rete_mirabile]
 synonym: "wonderful net" RELATED [Wikipedia:Rete_mirabile]
+xref: BTO:0006363 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: FMA:76728
 xref: Wikipedia:Rete_mirabile
 is_a: UBERON:0002049 ! vasculature
@@ -158577,6 +158621,7 @@ subset: pheno_slim
 synonym: "arterial blood" EXACT [FMA:83066]
 synonym: "blood in artery" EXACT [FMA:83066]
 synonym: "portion of arterial blood" EXACT [FMA:83066]
+xref: BTO:0006188 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: FMA:83066
 intersection_of: UBERON:0000178 ! blood
 intersection_of: located_in UBERON:0001637 ! artery
@@ -158588,6 +158633,7 @@ def: "A blood that is part of a vein." [OBOL:automatic]
 synonym: "blood in vein" EXACT [FMA:83067]
 synonym: "portion of venous blood" EXACT [FMA:83067]
 synonym: "venous blood" EXACT [FMA:83067]
+xref: BTO:0006187 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: FMA:83067
 intersection_of: UBERON:0000178 ! blood
 intersection_of: located_in UBERON:0001638 ! vein
@@ -165498,6 +165544,7 @@ def: "Light reflecting layer found in a variety of different types of eye." [htt
 subset: functional_classification
 synonym: "tapetal layer" EXACT []
 synonym: "tapetum layer" EXACT []
+xref: BTO:0001350 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: SPD:0000343
 is_a: UBERON:0000479 ! tissue
 relationship: has_quality PATO:0001297 ! reflectivity
@@ -181852,6 +181899,7 @@ def: "One of several small clusters of chemoreceptors, baroreceptors, and suppor
 synonym: "aortic bodies" RELATED PLURAL [Wikipedia:Aortic_body]
 synonym: "aortic glands" RELATED PLURAL [Wikipedia:Aortic_body]
 synonym: "Zuckerkandl's body" RELATED [Wikipedia:Aortic_body]
+xref: BTO:0006193 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: MESH:D001016
 xref: NCIT:C97112
 xref: SCTID:75061007
@@ -182459,6 +182507,7 @@ is_a: UBERON:0000058 ! duct
 [Term]
 id: UBERON:0035053
 name: interlobular duct of salivary gland
+xref: BTO:0006341 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: FMA:60053
 intersection_of: UBERON:0014716 ! interlobular duct
 intersection_of: part_of UBERON:0001044 ! saliva-secreting gland
@@ -187833,6 +187882,7 @@ relationship: present_in_taxon NCBITaxon:8292 ! Amphibia
 [Term]
 id: UBERON:0036243
 name: vaginal fluid
+xref: BTO:0003084 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "Fluid that lines the vaginal walls that consists of multiple secretions that collect in the vagina from different glands." [http://www.bumc.bu.edu/sexualmedicine/physicianinformation/female-genital-anatomy/]
 synonym: "vaginal discharge" RELATED []
 synonym: "vaginal secretion" RELATED []
@@ -191637,6 +191687,7 @@ property_value: provenance_notes "This class was sourced from an external ontolo
 [Term]
 id: UBERON:2000293
 name: synencephalon
+xref: BTO:0006476 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: ZFA:0000293
 is_a: UBERON:0000481 ! multi-tissue structure
 relationship: part_of UBERON:0001894 ! diencephalon
@@ -191669,6 +191720,7 @@ property_value: provenance_notes "This class was sourced from an external ontolo
 [Term]
 id: UBERON:2000298
 name: vent
+xref: BTO:0006431 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: ZFA:0000298
 is_a: UBERON:0003102 ! surface structure
 property_value: provenance_notes "This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon" xsd:string {source="http://purl.obolibrary.org/obo/tao.owl"}
@@ -191919,6 +191971,7 @@ synonym: "branchiospine" EXACT [PSPUB:0000164]
 synonym: "gill rakers" EXACT PLURAL [TAO:0000356]
 synonym: "gill-raker" EXACT [TAO:0000356]
 synonym: "gillraker" EXACT [TAO:0000356]
+xref: BTO:0002149 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: ZFA:0000356
 is_a: UBERON:0008907 ! dermal bone
 relationship: never_in_taxon NCBITaxon:40674 {source="https://github.com/obophenotype/uberon/issues/2050"} ! Mammalia
@@ -212011,6 +212064,7 @@ property_value: provenance_notes "This class was sourced from an external ontolo
 [Term]
 id: UBERON:3010489
 name: muscular artery
+xref: BTO:0004724 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "Part of the external carotid which delivers blood to the mm rectus cervicis and interhyoideus posterior." [AAO:BJB]
 is_a: UBERON:0001637 ! artery
 relationship: part_of UBERON:0001070 ! external carotid artery
@@ -212336,6 +212390,7 @@ property_value: provenance_notes "This class was sourced from an external ontolo
 [Term]
 id: UBERON:3010586
 name: vasa efferentia
+xref: BTO:0002254 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "Sperm travel through these 4 or 5 fine ducts which pass through the mesorchium from the testis to the sexual kidney." [AAO:BMZ]
 is_a: UBERON:0006946 ! efferent duct
 property_value: provenance_notes "This class was sourced from an external ontology (amphibian_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon" xsd:string {source="http://purl.obolibrary.org/obo/aao.owl"}
@@ -214079,6 +214134,7 @@ def: "Median fin that is located posterior to the anus." [TAO:curator]
 synonym: "nageoire anale" EXACT [PSPUB:0000164]
 synonym: "proctoptère" EXACT [PSPUB:0000136]
 synonym: "proctoptérygie" EXACT [PAPUB:0000142, PSPUB:0000140]
+xref: BTO:0004652 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: ZFA:0001162
 intersection_of: UBERON:0008897 ! fin
 intersection_of: has_skeleton UBERON:4000166 ! anal fin skeleton
@@ -214094,6 +214150,7 @@ synonym: "tail" RELATED [VSAO:0000164]
 synonym: "tail fin" RELATED [VSAO:0000164]
 synonym: "uroptère" EXACT [PSPUB:0000135]
 synonym: "uroptérygie" EXACT [PSPUB:0000140]
+xref: BTO:0001827 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: ZFA:0001058
 intersection_of: UBERON:0008897 ! fin
 intersection_of: has_skeleton UBERON:4000167 ! caudal fin skeleton
@@ -217092,6 +217149,7 @@ relationship: dc-contributor https://orcid.org/0000-0003-3162-7490 ! Wasila M Da
 [Term]
 id: UBERON:4300194
 name: photophore
+xref: BTO:0001477 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "A light-emitting organ which appears as luminous spots on various marine animals, including fish and cephalopods." [PHENOSCAPE] {comment="https://en.wikipedia.org/wiki/Photophore"}
 is_a: UBERON:0000062 ! organ
 relationship: dc-contributor https://orcid.org/0000-0003-3162-7490 ! Wasila M Dahdul
@@ -222871,6 +222929,7 @@ name: cerebral nuclei
 def: "One of three components of the cerebrum that is a composite structure of the endbrain defined on the basis of origin from the ventricular ridge of the embryonic Encephalon. It consists of the extended striatum and the extended pallidum." [neuronames:2677]
 comment: This was added as a more precise mapping to the Allen brain atlas (as opposed to collection of basal ganglia)
 synonym: "CNU" EXACT [MBA:623]
+xref: BTO:0006534 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 xref: DHBA:10331
 xref: HBA:4275
 xref: MBA:623
@@ -223523,6 +223582,7 @@ property_value: seeAlso "https://github.com/obophenotype/uberon/issues/476" xsd:
 [Term]
 id: UBERON:8450002
 name: excretory system
+xref: BTO:0006338 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "An anatomical system that eliminates waste products that arise as a result of metabolic activity." [GO:0007588]
 intersection_of: UBERON:0000467 ! anatomical system
 intersection_of: capable_of GO:0046903 ! secretion
@@ -223924,6 +223984,7 @@ property_value: dcterms-date "2022-11-22T09:15:50Z" xsd:dateTime
 [Term]
 id: UBERON:8480040
 name: ovarian fluid
+xref: BTO:0004569 {http://purl.org/dc/terms/contributor="https://orcid.org/0000-0003-4423-4370"}
 def: "Fish ovary secretion released with eggs." [PMID:8526977]
 is_a: UBERON:0006537 ! female reproductive gland secretion
 relationship: dc-contributor https://orcid.org/0000-0002-0819-0473 ! Paula Duek Roggli