OPTImAL: An ontology for patient adherence modeling in physical activity domain	Environmental conditions, treatments and exposures ontology	Source
http://webprotege.stanford.edu/project/B1YA5aP4fTfTaBBx7flwQP#PhysicalActivity	http://purl.obolibrary.org/obo/XCO_0000059	LOOM
http://webprotege.stanford.edu/project/B1YA5aP4fTfTaBBx7flwQP#Exercise	http://purl.obolibrary.org/obo/NCIT_C16567	LOOM
http://webprotege.stanford.edu/project/B1YA5aP4fTfTaBBx7flwQP#PhysicalActivity	http://purl.obolibrary.org/obo/NCIT_C17708	LOOM