Singh, A. G., V. R. Choudhary, V. Ghanghoria, and K. Patel. “Evaluation of Intersystem Agreement Between Standard Pelvic Organ Prolapse Quantification System and Simplified Pelvic Organ Prolapse Scoring System”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 5, Apr. 2017, pp. 2031-4, doi:10.18203/2320-1770.ijrcog20171971.