Sequence Types and Features Ontology Digital Health Technologies Source
http://purl.obolibrary.org/obo/SO_0000303 http://webprotege.stanford.edu/RCnOBC07pmrf3ZBKLqmLxc3 LOOM
http://purl.obolibrary.org/obo/SO_0000581 http://webprotege.stanford.edu/RDVwkRceFuilJD1nqVUx50h LOOM