Minimal Standard Terminology of Digestive Endoscopy	Symptom Ontology	Source
http://purl.obolibrary.org/obo/SYMP_0000539	http://purl.bioontology.org/ontology/MSTDE/MT180003	LOOM
http://purl.obolibrary.org/obo/SYMP_0000421	http://purl.bioontology.org/ontology/MSTDE/MT170003	LOOM
http://purl.obolibrary.org/obo/SYMP_0019147	http://purl.bioontology.org/ontology/MSTDE/MT160005	LOOM
http://purl.obolibrary.org/obo/SYMP_0000323	http://purl.bioontology.org/ontology/MSTDE/MT160006	LOOM
http://purl.obolibrary.org/obo/SYMP_0000493	http://purl.bioontology.org/ontology/MSTDE/MT160004	LOOM
http://purl.obolibrary.org/obo/SYMP_0000867	http://purl.bioontology.org/ontology/MSTDE/MT160018	LOOM