|
|
|
| Proportion
of Pregnancies |
||
| Prevented
by Levonorgestrel vs. |
||
| Yupze
Regimen* |
||
| * 95% CI |
| 71% |
| 74% |
| 39% |
| 85% |
| 57% |
|
|
| Task Force
on Postovulatory Methods of Fertility Regulation. |
|
| Lancet.
1998;352:428-433. |
|