title: Identification of vitamin D3 in human skin.
mesh_terms: D002762:Cholecalciferol / Q000302:isolation & purification*; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D006801:Humans; D012867:Skin / Q000032:analysis*; D013057:Spectrum Analysis; D014316:Tritium
chemical_list: D014316:Tritium; D002762:Cholecalciferol