1. Intersexuality;Overzieher,1963
2. Hermaphroditism, Genital Anomalies and Related Endocrine Disorders;Jones,1971
3. Disorders of Sex Differentiation;Van Wyk,1974
4. Abnormal Sexual Development;Federman,1967
5. Genetic origin of some sex differences among human beings;Childs;Pediatrics,1965