A survey of emergency contraceptive pills in Peru found that 28 percent of the batches studied were either of substandard quality or falsified. Many pills released the active ingredient too slowly. Others had the wrong active ingredient. One batch had no active ingredient at all.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...