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Reference:
1. Centers for disease control and prevention (CDC). Combined hormonal contraceptives [Internet]. 2024 Nov 19 [cited; 2026 Jan 11]. Available from: https://www.cdc.gov/contraception/hcp/usspr/combined-hormonal-contraceptives.html.
2. Tran G, Wollen J, Davis S, Wang EM, Arriazola J, Rosario N. A review of recommendations, efficacy, and patient safety for over-the-counter norgestrel for daily contraception. Explor Res Clin Soc Pharm. 2025;18:100591.
3. Creinin MD, Jensen JT, Chen MJ, Black A, Costescu D, Foidart JM. Combined oral contraceptive adherence and pregnancy rates. Obstet Gynecol. 2023;141(5):989-94.
Keywords:
ยาคุมกำเนิด, การตั้งครรภ์, ลืมกินยา
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