title: [Proteolytic enzymes in the blood. 1. Proteolytic activity at around pH 2--a new determination method for pepsin and pepsinogen].
mesh_terms: D000328:Adult; D000368:Aged; D001798:Blood Proteins; D004792:Enzyme Precursors / Q000097:blood*; D005260:Female; D005743:Gastrectomy; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008875:Middle Aged; D010434:Pepsin A / Q000032:analysis / Q000097:blood*; D010447:Peptide Hydrolases / Q000652:urine; D014443:Tyrosine / Q000097:blood
chemical_list: D001798:Blood Proteins; D004792:Enzyme Precursors; D014443:Tyrosine; D010447:Peptide Hydrolases; D010434:Pepsin A