Provisional Cell Ontology
Mammalian Phenotype Ontology
Source
http://purl.obolibrary.org/obo/GO_0014734
http://purl.obolibrary.org/obo/MP_0009461
LOOM
http://purl.obolibrary.org/obo/GO_0032059
http://purl.obolibrary.org/obo/MP_0008854
LOOM