1. [1] Schorge J, Schaffer J, Halvorson L, et al. Williams gynecology. 1st edn. New York: McGraw-Hill Companies 2008:716-53.
2. Preoperative differentiation of malignant from benign ovarian tumors: the efficacy of morphology indexing and Doppler flow sonography;Ueland;Gynecol Oncol,2003
3. Color Doppler sonography of ovarian masses: a multiparameter analysis;Fleischer;J Ultrasound Med,1993
4. [4] Couto F, Nadkarni NS, Rebellow MJ. Ovarian tumors in Goa: a clinic-pathological study. J Obstet Gynecol India 1993;43(3):408-12.
5. [5] Rashid S, Sarwar G, Ali A. A clinicopathological study of ovarian cancer in departments of radiotherapy and oncology, Sir Ganga Ram Hospital and Mayo hospital. Lahore 1998;13(4):117-25.