Dr George Ricaurte
Dr George A. Ricaurte, lead author of the retracted paper in Science (26 Sept 2002) Severe Dopaminergic Neurotoxicity in Primates After a Common Recreational Dose Regimen of MDMA ("Ecstasy"). Dr Ricaurte's earlier work on MDMA-induced serotonergic neurotoxicity is much harder to dismiss.
G A Ricaurte
Ecstasy or speed?
Is Ecstasy bad for the brain?
Ecstasy as an anti-Parkinsonian agent?
MDMA ("Ecstasy") and Parkinson's Disease?
Ricaurte's retracted "Ecstasy"/Parkinsonism paper
Ecstasy: 'neurological time bomb' or labelling error?
MDMA and symptomatic relief of Parkinson's symptoms
and further reading