My research with Leon lead me to this.

"VANCOUVER, Sept. 8 /PRNewswire/ - Gynecologic oncologists with the Ovarian Cancer Research Program at Vancouver General Hospital (VGH) and the BC Cancer Agency have begun an important campaign that will reduce deaths from ovarian cancer. They are asking all BC gynecologists to change surgical practice to fully remove the fallopian tube when performing hysterectomy or tubal ligation. Current ..."