title: Prenatal diagnosis - chemical methods.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis* / Q000166:cytology; D000757:Anencephaly / Q000175:diagnosis; D001798:Blood Proteins; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D005865:Gestational Age; D006801:Humans; D007075:Immunoglobulin M; D008264:Macrophages; D008970:Molecular Weight; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D016135:Spinal Dysraphism / Q000175:diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D001798:Blood Proteins; D005326:Fetal Proteins; D007075:Immunoglobulin M; D000509:alpha-Fetoproteins