1 Women's Health Research Institute, British Columbia Women's Hospital & Health Centre, Vancouver, Canada.
2 School of Nursing, University of British Columbia, Vancouver, Canada. Electronic address: fuchsia.howard@ubc.ca.
3 University of British Columbia Endometriosis Patient Advisory Board, British Columbia Women's Hospital & Health Centre, Vancouver, Canada.
4 Women's Health Research Institute, British Columbia Women's Hospital & Health Centre, Vancouver, Canada; Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, Canada; British Columbia Women's Centre for Pelvic Pain & Endometriosis, British Columbia Women's Hospital & Health Centre, Vancouver, Canada.