title: Research on normal values of serum angiotensin-I converting enzyme. Cooperative Group of Sarcoidosis Research.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000803:Angiotensin I; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D007703:Peptidyl-Dipeptidase A / Q000097:blood*; D012016:Reference Values; D012737:Sex Factors; D012907:Smoking; D013379:Substrate Specificity
chemical_list: D000803:Angiotensin I; D007703:Peptidyl-Dipeptidase A