Basic versus biofeedback-mediated intensive pelvic floor muscle training for women with urinary incontinence: the OPAL RCT oleh Suzanne Hagen, Carol Bugge, Sarah G Dean, Andrew Elders, Jean Hay-Smith, Mary Kilonzo, Doreen McClurg, Mohamed Abdel-Fattah, Wael Agur, Federico Andreis, Joanne Booth, Maria Dimitrova, Nicola Gillespie, Cathryn Glazener, Aileen Grant, Karen L Guerrero, Lorna Henderson, Marija Kovandzic, Alison McDonald, John Norrie, Nicole Sergenson, Susan Stratton, Anne Taylor, Louise R Williams