title: Decreased immunoreactive trypsin levels in sera from cystic fibrosis patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000201:enzymology*; D006801:Humans; D007223:Infant; D011863:Radioimmunoassay; D014357:Trypsin / Q000097:blood*
chemical_list: D014357:Trypsin