[1] N. Ahmed, V. Kale, H. Thakkar, et al., “Sonographic Diagnosis of Placental Teratoma,” Journal of Clinical Ultrasound, Vol. 32, No. 3, 2004, pp. 98-101. doi:10.1002/jcu.10231
[2] K. Meinhard and S. Dimitrov, A. Nicolov, et al., “Placental teratoma,” Pathology—Research and Practice, Vol. 195, No. 9, 1999, pp. 649-651. doi:10.1016/S0344-0338(99)80130-7
[3] R. Chandy, A. G. Korula and L. Seshadri, “Teratoma of the Placenta,” Australian and New Zealand Journal of Obstetrics and Gynaecology, Vol. 42, No. 5, 2002, pp. 556-557. doi:10.1111/j.0004-8666.2002.548_6.x
[4] S. Elagoz, H. Aker and A. Cetin, “Placental Teratoma,” The European Journal of Obstetrics & Gynecology and Reproductive Biology, Vol. 80, No. 2, 1998, pp. 263-265. doi:10.1016/S0301-2115(98)00090-6
[5] H. Shimojo, N. Itoh, H. Shigematsu and T. Yamazaki, “Mature Teratoma of the Placenta,” Pathology International, Vol. 46, No. 5, 1996, pp.372-375. doi:10.1111/j.1440-1827.1996.tb03623.x
[6] H. Fox and R. Butler-Manuel, “A Teratoma of the Placenta,” The Journal of Pathology and Bacteriology, Vol. 88, No. 1, 1964, pp. 137-140. doi:10.1002/path.1700880118