Letter: Ratio of renal clearances of amylase and creatinine.
D000681:Amylases / Q000097:blood / Q000652:urine*; D003404:Creatinine / Q000097:blood / Q000652:urine*; D006801:Humans; D007674:Kidney Diseases / Q000652:urine; D008433:Mathematics; D010195:Pancreatitis / Q000652:urine
D003404:Creatinine; D000681:Amylases