Subgroups of failure after surgery for pelvic organ prolapse and associations with quality of life outcomes: a longitudinal cluster analysis

J. Eric Jelovsek, Marie G. Gantz, Emily S. Lukacz, Halina M. Zyczynski, Amaanti Sridhar, Caroline Kery, Robert Chew, Heidi S. Harvie, Gena C. Dunivan, Joseph I. Schaffer, Vivian W. Sung, R.E. Varner, Donna Mazloomdoost, Matthew D. Barber