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A systematic review of effectiveness and safety of different regimens of levonorgestrel oral tablets for emergency contraception
BACKGROUND: Unintended pregnancy is a complex phenomenon which raise to take an emergency decision. Low contraceptive prevalence and high user failure rates are the leading causes of this unexpected situation. High user failure rates suggest the vital role of emergency contraception to prevent unpla...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3977662/ https://www.ncbi.nlm.nih.gov/pubmed/24708837 http://dx.doi.org/10.1186/1472-6874-14-54 |