1. Fox, H, 1996, Invasive moles and choriocarcinoma: origins and nature, Seoul, Korea, 7
2. Hando, T, 2000, Gestational Trophoblastic Diseases, 32, 33
3. The nature of trophoblstic disease initiated by transplantation into immunosuppressed animals;Kato;Am J Obstet Gynecol,1982
4. Novak's Gynecologic and Obstetric Pathology 6th Edition;Novak,1967
5. The Committeee report;Takeuchi;Acta Obstet Gynecol Japonica,1987