1. Anterior colporrhaphy;Nichols,1983
2. Clinical evaluation of the lower urinary tract;McGuire;Clin. Obst. Gynaec,1985
3. Vaginal prolapse affecting bladder function;Nichols;Clin. Obst. Gynaec,1985
4. Iatrogenic stress incontinence of urine;Symmonds;Amer. J. Obst. and Gynec.,1961