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Retests have found no positive doping results "so far" in athletes' samples taken during the 2006 Winter Olympics in Turin, the International Olympic Committee's medical commission chair told AFP Thursday.
"So far we have no positive result from the retests," said Arne Ljungqvist, speaking on the sidelines of the World Conference on Doping in Sport.
"We hope that it will be ready by the end of the year," he added.
"We want to have it done before the Sochi Games so we don't have an overlap of testing to do."
The IOC keeps samples taken during Olympics for up to eight years in its refrigerators in Lausanne, hoping new technology will catch culprits many years after they competed.
Such later tests have been fruitful in identifying cheats -- up to seven Olympic medals have been affected up to now.
Two medallists from the 2008 Beijing Games were stripped after Cera, the third-generation erythropoietin product, was discovered in their blood. Three other athletes also tested positive for the drug.
In 2012 retests led to the disqualification of five medallists from the 2004 Athens Olympics, just before the allowed term to keep the samples expired.