Premodifier: vitamin d
Head noun: level

Same concepts
http://dbpedia.org/resource/Calcifediol

Narrower concepts

labelprovenanceconfidence
obeseisap:3734578300.238067
time in the sunisap:923082810.232595
bmusisap:930752920.228180
winterisap:1188234160.186991
patientisap:316604080.177274