https://www.shwales.online/permanent-contraception/
Permanent Contraception - Sexual Health Wales
Sterilisation is a permanent method of contraception, for people who don’t want more (or any) children and is more than 99% effective.
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https://www.fpnsw.org.au/factsheets/individuals/contraception/permanent-contraception-male-sterilisation-vasectomy
Permanent Contraception: Male Sterilisation (Vasectomy) | Family Planning NSW
permanent contraceptionfamily planningmalesterilisationvasectomy