Hota, Tapaswini, and Sujata Misra. 2017. “Pelvic Organ Prolapse Quantification System: To Valsalva or Not to Valsalva While Measuring Genital Hiatus (GH) and Perineal Body (PB)”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6 (5):1843-47. https://doi.org/10.18203/2320-1770.ijrcog20171534.