1. Textbook of Gynecology;Novak,1970
2. Special Tumors of Ovaries and Testis and Related Extragonadal Lesions;Teilum,1971
3. Chorionic gonadotropin producing carcinoma of the ovary in two post-menopausal females;Civantos;Lab. Invest.,1971
4. Extragenital choriocarcinoma;Edmonds;J. Pediat.,1965
5. Chorionepithelioma of lung in female infant 7 months old;Kay;Amer. J. Path.,1953