an Entity references as follows:
Sterilization (also spelled sterilisation) is any of a number of medical methods of birth control that intentionally leaves a person unable to reproduce. Sterilization methods include both surgical and non-surgical, and exist for both males and females. Sterilization procedures are intended to be permanent; reversal is generally difficult or impossible. In some cases, sterilization can be reversed but not all. It can vary by the type of sterilization performed.