title: Amniotic fluid GGTP in prenatal diagnosis of cystic fibrosis: a word of warning.
mesh_terms: D000626:Aminopeptidases / Q000032:analysis; D000649:Amniocentesis; D000653:Amniotic Fluid / Q000201:enzymology*; D018826:CD13 Antigens; D003550:Cystic Fibrosis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D005723:gamma-Glutamyltransferase / Q000032:analysis*
chemical_list: D005723:gamma-Glutamyltransferase; D000626:Aminopeptidases; D018826:CD13 Antigens