Deficiency of sunlight and vitamin D.
Holick
Michael F
MF
D003376:Counseling; D005527:Food, Fortified; D006801:Humans; D012279:Rickets / Q000517:prevention & control*; D013472:Sunlight; D014807:Vitamin D / Q000008:administration & dosage*; D014808:Vitamin D Deficiency / Q000517:prevention & control*; D014815:Vitamins / Q000008:administration & dosage*
D014815:Vitamins; D014807:Vitamin D