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Poland's sprinter-turned Minister of Sport and Tourism Witold Banka speaks during the closing ceremony of the World Conference on Doping in Sport in Katowice, Poland, Nov. 7, 2019. (Xinhua/Zhou Nan)
Poland's sprinter-turned Minister of Sport and Tourism Witold Banka speaks during the closing ceremony of the World Conference on Doping in Sport in Katowice, Poland, Nov. 7, 2019. (Xinhua/Zhou Nan)