| http://www.w3.org/ns/prov#value | - Tennis - 08 Mar 2013 - Tennis is the latest sport to turn to biological passports for its players as part of anti-doping efforts.At a meeting of the Tennis Anti-Doping Programme Working Group, which includes representatives of the International Tennis Federation, the men???s ATP and women???s WTA Tours and the four grand slam tournaments, on Wednesday, it was agreed that tougher measures were requ
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