Biuro Zdrowia Kobiet: Metody kontroli urodzeń.
American College of Obstetricians and Gynecologists: Kontrola urodzeń (szczególnie dla nastolatek).
Centrum Zdrowia Młodych Kobiet: Contraception: Pros and Cons of Different Contraceptive Methods.
International Journal of Gynaecology and Obstetrics: Time to conception after IUD removal: importance of duration of use, IUD type, pelvic inflammatory disease and age.
