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1999 Dafters MDMA & Coherence Study
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Level of use of 3,4-methylenedioxymethamphetamine (MDMA or Ecstasy) in humans correlates with EEG power and coherence,
by R.I. Dafters; F. Duffy; P.J. O'Donnell; C. Bouquet
Psychopharmacology Vol 145, 1999, 82-90