Scientists recruited 48 trained amateur cyclists and gave them either EPO or a placebo for 8 weeks. Participants were subjected to seven endurance tests. The researchers are still analyzing results but have already shared one key outcome: Riders on EPO weren't faster than those on placebo.

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Scientists recruited 48 trained amateur cyclists and gave them either EPO or a placebo for 8 weeks. Participants were subjected to seven endurance tests. The researchers are still analyzing results but have already shared one key outcome: Riders on EPO weren't faster than those on placebo.