The International Ski Federation (FIS) has denied an appeal by six Russian cross-country skiers suspended under the suspicion of doping. identified at least 34 skiers mentioned in the McLaren report, an investigation into systematic doping in Russia. Content of Legkov and Belov Appeal Legkov and Belov, in German and writes on its website. Urine contains substances excreted from the body, while blood contains those integrated into the body. Testing agencies may not even test for...