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Nature 425, 109 (11 September 2003) | doi:10.1038/425109a

Agony for researchers as mix-up forces retraction of ecstasy study

Jonathan Knight

Drug researchers are this week hitting out at scientists who accidentally injected monkeys with methamphetamine — or 'speed' — when they were supposed to be studying the effects of the drug ecstasy.In results published last September, a team at the Johns Hopkins University School of Medicine in Baltimore, Maryland, showed for the first time that repeated small doses of ecstasy damaged brain cells that produce the neurotransmitter dopamine in monkeys (G.