title: [Changes in serum angiotensin converting enzyme activity in patients with lung cancer].
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008175:Lung Neoplasms / Q000201:enzymology*; D008875:Middle Aged; D007703:Peptidyl-Dipeptidase A / Q000097:blood*; D011379:Prognosis
chemical_list: D007703:Peptidyl-Dipeptidase A