C. Jivangkul, P. Charoenchainont, S. Leelahakorn, P. Hanidhikul, and M. Sripramote, “Ultrasonographic Scoring System for Preoperative Discrimination Between Benign and Malignant Ovarian Tumors”, Thai J Obstet Gynaecol, vol. 14, no. 3, p. 231, Jul. 2017.