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- [4] Contraceptive Efficacy and Safety of 52 mg Levonorgestrel-Releasing Intrauterine Systems During Years 6-8 of Use: Data From the Mirena Extension Trial OBSTETRICS AND GYNECOLOGY, 2022, 139 : 4S - 4S
- [5] Levonorgestrel 52-mg Intrauterine Device Efficacy and Safety After More Than 8 Years of Use OBSTETRICS AND GYNECOLOGY, 2023, 141 (05): : 1004 - 1006
- [7] Five-year Contraceptive Use of 52-mg Levonorgestrel Releasing Intrauterine System in Young Women, Menstrual Patterns, and New Contraceptive Choice REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRICIA, 2023, 45 (11): : 654 - 660