Reference:
1. Turok D. Emergency contraception. UpToDate® 2021. https://www.uptodate.com/contents/emergency-contraception.
2. American College of Obstetricians and Gynecologists. Practice bulletin no. 152: emergency contraception. Obstet Gynecol 2015;126(3):e1-e11.
3. Gainer E, Kenfack B, Mboudou E, Doh AS, Bouyer J. Menstrual bleeding patterns following levonorgestrel emergency contraception. Contraception 2006;74(2):118-24.
Keywords:
levonorgestrel, เลโวนอร์เจสเตรล, ยาคุมกำเนิดฉุกเฉิน, เลือดออกกะปริบกะปรอย