title: [Metabolism of vitamin A in the skin. 1. Conversion of retinal to retinoic acid in the skin--a qualitative study].
mesh_terms: D000818:Animals; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D051381:Rats; D012867:Skin / Q000378:metabolism*; D014020:Tissue Extracts; D014801:Vitamin A / Q000378:metabolism*
chemical_list: D014020:Tissue Extracts; D014801:Vitamin A