title: Low trehalase activity in amniotic fluid: a marker for cystic fibrosis?
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D004796:Clinical Enzyme Tests; D003550:Cystic Fibrosis / Q000175:diagnosis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014198:Trehalase / Q000032:analysis*; D001616:beta-Galactosidase / Q000032:analysis
chemical_list: D001616:beta-Galactosidase; D014198:Trehalase