title: Spectrophotometric determination of hydroxyproline in connective tissue on the nanogram level.
mesh_terms: D000818:Animals; D001011:Aorta / Q000032:analysis; D003094:Collagen / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis*; D006909:Hydroxyproline / Q000032:analysis*; D008722:Methods; D008832:Microchemistry; D011817:Rabbits; D013053:Spectrophotometry
chemical_list: D003094:Collagen; D006909:Hydroxyproline