title: Collagen in skin, cartilage, and placenta in human prenatal development.
mesh_terms: D002356:Cartilage / Q000196:embryology*; D003094:Collagen / Q000378:metabolism*; D005260:Female; D005333:Fetus / Q000378:metabolism*; D006801:Humans; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D012867:Skin / Q000196:embryology*
chemical_list: D003094:Collagen