Pradhan, T, et al. “Assessment of Pelvic Organ Prolapse by Pelvic Organ Prolapse Quantification Technique Among Pre-Operative Patients”. Nepal Journal of Obstetrics and Gynaecology, vol. 8, no. 2, Feb. 2014, pp. 26-29, https://nepjol.info./index.php/NJOG/article/view/9765.