title: Collagen metabolism.
mesh_terms: D000375:Aging; D001172:Arthritis, Rheumatoid / Q000378:metabolism; D003094:Collagen / Q000096:biosynthesis*; D006801:Humans; D010488:Polyarteritis Nodosa / Q000378:metabolism; D012867:Skin / Q000378:metabolism*
chemical_list: D003094:Collagen