Technique for midtrimester amniocentesis for prenatal diagnosis.
D000649:Amniocentesis / Q000379:methods*; D002869:Chromosome Aberrations / Q000175:diagnosis*; D025063:Chromosome Disorders; D005260:Female; D006801:Humans; D008423:Maternal Age; D008661:Metabolism, Inborn Errors / Q000175:diagnosis; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis / Q000379:methods*; D012306:Risk