Published in Women's Health Weekly, February 7th, 2008
"It was approved by the Food and Drug Administration in 2001. The vaginal contraceptive ring is highly efficacious with a Pearl Index of 1.18 and an efficacy of 99.1%," wrote T. Madden and colleagues, Washington University, Medical Department.
The researchers concluded: "Effectiveness is similar with actual use."
Madden and colleagues published their study in Clinical Obstetrics...
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