title: Problems of prenatal diagnosis.
mesh_terms: D000328:Adult; D000649:Amniocentesis; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D009030:Mosaicism; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis / Q000592:standards; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins