Cargando…
New low-dose, extended-cycle pills with levonorgestrel and ethinyl estradiol: an evolutionary step in birth control
AIM: To review milestones in development of oral contraceptive pills since their introduction in the US 50 years ago in order to better understand how a new formulation with low-dose estrogen in an extended-cycle pattern fits into the evolution of birth control pills. METHODS: This is a review of tr...
| Autor principal: | |
|---|---|
| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Dove Medical Press
2010
|
| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2971737/ https://www.ncbi.nlm.nih.gov/pubmed/21072303 |