Resource of Asian Primary Immunodeficiency Diseases (RAPID) Phenotype Ontology	Head and Neck Cancer Ontology	Source
http://www.semanticweb.org/ontologies/2012/5/Ontology1338526551855.owl#Leukoplakia	http://ontology.lst.tfo.upm.es/BD2D/risk#Additional_precancerous_lesion_1@@2	LOOM
http://www.semanticweb.org/ontologies/2012/5/Ontology1338526551855.owl#Muscle	http://ontology.lst.tfo.upm.es/BD2D/patho#Level_of_Invasion@@3	LOOM
http://www.semanticweb.org/ontologies/2012/5/Ontology1338526551855.owl#Leukoplakia	http://ontology.lst.tfo.upm.es/BD2D/risk#Additional_precancerous_lesion_2@@2	LOOM
http://www.semanticweb.org/ontologies/2012/5/Ontology1338526551855.owl#Muscle	http://ontology.lst.tfo.upm.es/BD2D/ctn#Tissue_Invasion_ExtraNodalExtension_to@@2	LOOM