title: Are second-trimester amniotic fluids being properly examined?
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis / Q000166:cytology*; D000757:Anencephaly / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins