0
3
0
http://purl.obolibrary.org/obo/XCO_0000626
removal of maxillary molar crown
'removal of maxillary molar crown' SubClassOf 'surgical removal'
http://purl.obolibrary.org/obo/XCO_0000624
thiobutabarbital
'thiobutabarbital' SubClassOf 'anesthetic/analgesic'
http://purl.obolibrary.org/obo/XCO_0000625
urethane
'urethane' SubClassOf 'anesthetic/analgesic'
'urethane' SubClassOf 'antineoplastic agent'