期刊
OBSTETRICS AND GYNECOLOGY
卷 137, 期 4, 页码 623-625出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/AOG.0000000000004118
关键词
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资金
- Society of Family Planning Research Fund
- William and Flora Hewlett Foundation
- Susan Thompson Buffett Foundation
- Eunice Kennedy Shriver National Institute of Child Health and Human Development [8UL1TR000105]
- Office of Research on Women's Health of the National Institutes of Health [K12HD085852, K24HD087436, 1R01HD083340]
The placement of a levonorgestrel-releasing intrauterine system (52-mg) 6-14 days after unprotected intercourse reduces the likelihood of pregnancy.
Pregnancy is unlikely when a levonorgestrel-releasing intrauterine system (52-mg) is placed 6-14 days after unprotected intercourse.
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