Kornete, A., Z. Paunina, and Z. Grabe. “Complicated Clinical Course of Acute Pelvic Inflammatory Disease”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 9, Aug. 2017, pp. 4116-9, doi:10.18203/2320-1770.ijrcog20174072.