Mass Spectrometry Ontology	Placental Investigative Technique	Source
http://purl.obolibrary.org/obo/MS_1000268	https://pat.nichd.nih.gov/patinvestigativetechniques/IT.10	LOOM
http://purl.obolibrary.org/obo/MS_1000054	https://pat.nichd.nih.gov/patinvestigativetechniques/IT.03	LOOM