Hota T, Misra S. Pelvic organ prolapse quantification system: to valsalva or not to valsalva while measuring genital hiatus (GH) and perineal body (PB). Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Apr. 27 [cited 2026 Jan. 31];6(5):1843-7. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/2673