Test kit for human urine doping testing with A and B sample bottles are posed for photographs in London, Monday, Dec. 12, 2016. A 10-year global study of positive doping tests by children and young teenagers showed most sanctions came from Russia, India, and China and in weightlifting, athletics, and cycling. The World Anti-Doping Agency says diuretics, stimulants and anabolic steroids include stanozolol were the most commonly found substances. (AP Photo/Matt Dunham, File)
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