title: Significance of the occurrence of transparent skin. A study of histological characteristics and biosynthesis of dermal collagen.
mesh_terms: D000375:Aging; D002247:Carbon Isotopes; D003094:Collagen / Q000096:biosynthesis*; D006025:Glycosaminoglycans / Q000378:metabolism; D006801:Humans; D007271:Injections, Intradermal; D011392:Proline / Q000378:metabolism; D012871:Skin Diseases / Q000473:pathology*
chemical_list: D002247:Carbon Isotopes; D006025:Glycosaminoglycans; D003094:Collagen; D011392:Proline