title: Studies on human ascaris: purification of trypsin inhibitor.
mesh_terms: D000818:Animals; D001200:Ascaris / Q000201:enzymology*; D002918:Chymotrypsin / Q000037:antagonists & inhibitors; D014361:Trypsin Inhibitors / Q000302:isolation & purification*
chemical_list: D014361:Trypsin Inhibitors; D002918:Chymotrypsin