1. The scientific basis of prolapse. Hughes P, Jackson SR. The Obstetrician & Gynaecologist. July 2000: 2 no 3.

2. Pelvic organ prolapse - a review. Dietz HP. Aust Fam Physician. 2015. Jul;44(7):446-52

3. Pelvic organ Prolapse. Jelovsek JE, Maher C, Barber Vol 369 March 24, 2007

4. The prevalence of pelvic floor disorders and their relationship to gender, age, parity and mode of delivery. Maclennan AH, Taylor, AW, Wilson DH, Wilcon D. Br J Obstet Gynaecol. 2000 Dec;107(12):1460-70.

5. Prevalence of symptomatic pelvic organ prolapse in a Swedish population. Tegerstedt G, Maehle-Schmidt M, Nyrén C, Hammarström M. Int Urogynecol J Plevic Floor Dysfubct. 2005 16(6):497-503

6. Symptomatic pelvic organ prolapse and possible risk factors in a general population.Slieker-ten Hove MC, Pool-Goudzwaard AL, Eijkemans MJ, Steegers-Theunissen RP, Burger CW, Vierhout ME.Am J Obst Gyn. 2009 Feb;200(2):184.e1-7. doi: 0.1016/j.ajog.2008.08.070. Epub 2008 Dec 25.

7. Pelvic organ prolapse in the Women's Health Initiative: gravity and gravidity. Hendrix SL, Clark A, Nygaard I, Aragaki A, Barnabei V, McTiernan A. Am J Obstet Gynecol. 2002 Jun;186(6):1160-6.

8. Pelvic Organ prolapse and incontinence in developing countries; review of prevalence and risk factors. Walker GJA, Gunasekera P. Int Urogynecol J 201 1;22:127-35

9. The standardization of terminology of female pelvic organ prolapse and pelvic floor dysfunction. Bump RC, Mattiasson A, Bo K, Brubaker LP, DeLancey JO, Klarskov P, et al. Am J Obstet Gynecol. 1996;175:10-7.

10. Pelvic organ prolapse symptoms in relation tot POPQ, ordinal stages and ultrasound prolapse assessment. Kluivers KB, Hendriks JC, Shek C, Dietz HP. Urogynecology Journal and Pelvic Floor Dysfunction 19: 1299-1302.

11. The natural history of pelvic organ support in pregnancy. O'Boyle AL, O'Boyle JD, Ricks RE, Patience TH, Calhoun B, Davis G. Int Urogynecol J Pelvic Floor Dysfunct. 2003 Feb;14(1):46-9; discussion 49.

12. The aetiology of prolapse. Dietz HP. Int Urogynecol J (2008) 19:1323-1329.

13. Epidemiology of genital prolapse: observations from the Oxford Family Planning Ass Study. Mant J, Painter R, Vessey M. Br J Obstet Gynaecol. 1997 May;104(5):579-85.

14. A systematic review of clinical studies. 24 on hereditary factors in pelvic organ prolapse.Lince SL, van Kempen LC, Vierhout ME, Kluivers KB.Int Urogynecol J. 2012;23(10):1327-36.

15. International urogynecology consultation chapter 3 committee 2; conservative treatment of patient with pelvic organ prolapse: Pelvic floor muscle training. Bø K, Anglès-Acedo S, Batra A, Hoff Braekken I, Chan YL, Homsi Jorge C, Kruger J, Yadav M, Dumoulin C. Int Urogynecol J. 2022;33:2633-2667

16. Nonsurgical management of pelvic organ prolapse. Culligan PJ. Clinical Expert series Vol 119, no 4. April 2012.

17. Pessaries (mechanical devices) for managing pelvic organ prolapse in women (Review).Bugge C, Adams EJ, Gopinath D, Stewart F, Dembinsky M, Sobiesuo P, Kearney R.Cochrane Database of Systematic Reviews2020, Issue 11. Art. No.: CD004010. DOI:10.1002/14651858.CD004010.pub4.

18. Do pessaries prevent the progression of pelvic organ prolapse? Handa VL, Jones M. Int Urogynecol J Pelvic Floor Dysfunct 2002;13:349-51.

19. Prospective evaluation of outcome of vaginal pessaries versus surgery in women with symptomatic pelvic organ prolapse. Abdool Z, Thakar R, Sultan AH, Oliver RS. Int Urogynecol J Pelvic Floor Dysfunct 2010;22:273-8.

20. Pessary treatment for pelvic organ prolapse and health related quality of life: a review. Lamers BHC, Broekman BMW, Milani AL. Int Urogynecol J 2011 22:637-644

21. A simplified protocol for pessary management. Wu V, Farrell SA, Baskett TF, Flowerdew G. Obstet Gynecol 1997;90:990-4.

22. Patient characteristics that are associated with continued pessary use versus surgery after 1 year. Clemons JL, Aguilar VC, Sokol ER, Jackson ND, Myers DL. Am J Obstet Gynecol 2004;191:159-64.

23. A 5-year prospective study of vaginal pessary use for pelvic organ prolapse. Lone F, Thakar R, Sultan AH, Karamalis G. Int J of Gynaecology and Obstetrics 2011 114:56-59

24. Epidemiology of surgically managed pelvic organ prolapse and urinary incontinence.Olsen AL, Smith VJ, Bergstrom JO, Colling JC, Clark AL.Obstet Gynecol. 1997 Apr;89(4):501-6.

25. Pelvic floor function is independently associated with pelvic organ prolapse, Brækken IH, Majida M, Ellström Engh M, Holme IM, Bø K. BJOG 2009;116:1706-1714

26. Management of the neglected vaginal ring pessaries. Fernando RJ, Sultan AH, Thakar R, Jeyanthan K. Int Urogynecol J (2007) 18: 117-119

27. Vaginal pessaries in managing women with pelvic organ prolapse and urinary incontinence: patient characteristics and factors contributing to success. Hanson LAM, Schulz JA, Flood CG, Cooley B, Tam F. Int Urogynecol J (2006) 17: 155-159.

28. Pelvic organ prolapse in counties of different economy: a systematic review. Paudel S, Chalise A. Dangal G, Bhandari TR, Baral G,. Nep J Obstet Gynecol 2019;14(29):7-21

29. The history and usage of vaginal pessary: a review. Oliver R, Thakar R, Sultan AH. Eur J of Obstetrics & Gynecology and Reproductive Biology 156 (2011) 125-130.

30. A qualitative evidence synthesis using meta-ethnographic to understand the experience of living with pelvic organ prolapse. Toye F, Pearl J, Vincent K, Barker K. Int Urogynecology Journal 2020

31. The effectiveness of surgical procedures to prevent post-hysterectomy pelvic organ prolapse: a systematic review of the literature. Carlin GL, Bodner-Adler B, Husslein H, Ritter M, Umek W. Int Urogynecology Journal 2021 32:775-783

32. Effect of pessary cleaning and optimal time interval for follow-up: a prospective cohort study. Thys SD, Hakvoort RA, Asseler J, Milani AL, Vollebregt A, Roovers JP. Int Urogynecology Journal 2020 31: 1567-1574

33. Timing of Office-Based Pessary Care. Propst K,Mellen C,O’Sullivan DM,Tulikangas PK.Obstet Gynecol 2020;135:100-5

34. Pessary or surgery for a symptomatic pelvic organ prolapse: the PEOPLE study, a multicentre prospective cohort study. Van der Vaart LR, Vollebregt A, Milani AL, Lagro-Janssen AL, Duijnhoven RG, Roovers JPWR, Van der Vaart CH. BJOG 2022 129(5):820-829

35. Streneous physical activity, exercise, and pelvic organ prolapse: a narrative scoping review. Bó K,Anglès-Acedo S, Batra A, Hoff Braekken I, Chan YL, Homsi Jorge C, Kruger J, Yadav M, Dumoulin C. Int Urogynecol J. https://10,1007/s00192-023-05450-3

36. A comparison of long-term outcome between Manchester Fothergill and vaginal hysterectomy as treatment for uterine descent. Thys SD, Coolen AL, Martens IR, Oosterbaan HP, Roovers, JPWR, Mol BW, Bongers MY. Int J Urogynecol J 2011 22:1171-1178

37. International urogynecology consultation chapter 1 committee 2: Epidemiology of pelvic organ prolapse: prevalence, incidence, natural history, and service needs. Brown HW, Hegde A, Huebner M, Neels H, Barnes HC, Tarquini GV, Mukhtarova N, Mbwele B, Tailor V, Kocjancic E, Trowbridge E, Hayward L. Int Urogynecol J. 2022 33(2):173-187

38. Adverse events associated with pessary use over one year among women attending a pessary care clinic. Kakkar A, Adi Reuveni‐Salzman A, Bentaleb J, Belzile E, Merovitz L, Larouche M. Int Urogynecol J. (2023) 34:1765–1

39. Updating Evidence for Treatment of Pelvic Organ Prolapse. Charles W. Nager, MD. Opinion Editorial. 2023 American Medical Association

40. Manchester Procedure vs Sacrospinous Hysteropexy for Treatment of Uterine Descent. A Randomized Clinical Trial. Enklaar RA, Schulten SFM, van Eijndhoven HWF, Weemhoff M, van Leijsen SAL, van der Weide MC, van Bavel J,Verkleij-Hagoort AC, Adang EMM, Kluivers KB. JAMA. 2023;330(7):626-635. doi:10.1001/jama.2023.13140

41. International urogynecology consultation chapter 1 committee 2: Epidemiology of pelvic organ prolapse: prevalence, incidence, natural history, and service needs. Brown HW, Hegde A, Huebner M, Neels H, Barnes HC, Vissoci Marquini G, Mukhtarova1 N, Mbwele B, Tailor V, Kocjancic E, Trowbridge E, Hayward L. Int Urogynecol J