title: Letter: F.D.P. in amniotic fluid as marker for neural-tube defects.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D000757:Anencephaly / Q000175:diagnosis*; D005069:Evaluation Studies as Topic; D005260:Female; D005338:Fibrin Fibrinogen Degradation Products / Q000032:analysis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016135:Spinal Dysraphism / Q000175:diagnosis*; D013997:Time Factors
chemical_list: D005338:Fibrin Fibrinogen Degradation Products