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I think there were about 100 athletes with past doping, so about 70 didn't win medals. However you look at it, the dopers did much better than the average athlete with 30% winning a medal. This may be because top athletes are more likely to be tested but there is a more worrying possibility, that the effects of using steroids are longer term by increasing muscle and muscle type. As a consequence anyone who has used steroids should be outed for life.

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