Head and Neck Cancer - Clinical and Gene Ontology	Natural Products Ontology	Source
http://ontology.lst.tfo.upm.es/SPT/follow#Reason_for_Stopping_the_Treatment_of_Recurrent_Metastatic_Disease@@5	http://www.owl-ontologies.com/NPOntology.owl#id_000858	LOOM
http://ontology.lst.tfo.upm.es/SPT/patient#End_of_Study_Reason@@1	http://www.owl-ontologies.com/NPOntology.owl#id_000858	LOOM