title: Antitrypsin activity in serum.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002918:Chymotrypsin; D006801:Humans; D008722:Methods; D014361:Trypsin Inhibitors / Q000097:blood*
chemical_list: D014361:Trypsin Inhibitors; D002918:Chymotrypsin