title: Antenatal ultrasonic diagnosis of genetic defects: present status.
mesh_terms: D000649:Amniocentesis; D000757:Anencephaly / Q000175:diagnosis; D001848:Bone Diseases, Developmental / Q000175:diagnosis; D001921:Brain / Q000002:abnormalities; D004065:Digestive System Abnormalities; D005260:Female; D030342:Genetic Diseases, Inborn / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D016136:Spina Bifida Occulta / Q000175:diagnosis; D013131:Spine / Q000002:abnormalities; D014463:Ultrasonography; D014551:Urinary Tract / Q000002:abnormalities; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins