title: An assay for hydroxyproline and proline on one sample and a simplified method for hydroxyproline.
mesh_terms: D000818:Animals; D002356:Cartilage / Q000032:analysis; D003094:Collagen; D006909:Hydroxyproline / Q000032:analysis* / Q000652:urine; D008722:Methods; D011392:Proline / Q000032:analysis* / Q000652:urine; D012867:Skin / Q000032:analysis
chemical_list: D003094:Collagen; D011392:Proline; D006909:Hydroxyproline