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The Creeping Pearl: Why Has the Rate of Contraceptive Failure Increased in Clinical Trials of Combined Hormonal Contraceptive Pills?
BACKGROUND: Despite several drawbacks, the Pearl Index continues to be the most widely used statistical measure of contraceptive failure. However, Pearl indices reported in studies of newer hormonal contraceptives appear to be increasing. STUDY DESIGN: We searched PubMed and MIS databases for prospe...
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| Main Authors: | , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
2013
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3795840/ https://ncbi.nlm.nih.gov/pubmed/23683581 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.contraception.2013.04.001 |
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