title: Environmental light: effects on vitamin D synthesis and calcium metabolism in humans.
mesh_terms: D002112:Calcifediol / Q000097:blood; D002117:Calcitriol / Q000097:blood; D002118:Calcium / Q000378:metabolism*; D005260:Female; D006801:Humans; D008297:Male; D012621:Seasons; D012867:Skin / Q000378:metabolism; D013472:Sunlight; D014466:Ultraviolet Rays; D014807:Vitamin D / Q000096:biosynthesis*
chemical_list: D014807:Vitamin D; D002117:Calcitriol; D002112:Calcifediol; D002118:Calcium