1. Manual of Antenatal Pathology and Hygiene;Ballantyne,1902
2. Antenatal Diagnosis;Dorfman,1972
3. The Prenatal Diagnosis of Hereditary Disorders;Milunsky,1973
4. Antenatal Diagnosis of Genetic Disease;Emery,1973
5. Prenatal Diagnosis and Selective Abortion;Harris,1974