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Gold medalist Olivia Smoliga of the United States competes during the women's 50m backstroke final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 25, 2019. (Xinhua/Xia Yifang)
Gold medalist Olivia Smoliga of the United States competes during the women's 50m backstroke final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 25, 2019. (Xinhua/Xia Yifang)