EARLY FORMS OF PELVIC ORGAN PROLAPSE: CLINICAL SIGNIFICANCE, ETIOLOGY AND PATHOGENESIS Article Gasparov A.S., Kolesnikova S.A., Dubinskaya E.D., Babicheva I.A., Rad'Kova M.V. Voprosy Ginekologii, Akusherstva i Perinatologii. Dynasty Publishing House. Vol. 15. 2016. P. 43-51