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Baggott, Matthew J., Jennifer D. Siegrist, Gantt P. Galloway, Lynn C. Robertson, Jeremy R. Coyle, and John E. Mendelson. Investigating the Mechanisms of Hallucinogen-Induced Visions Using 3,4-Methylenedioxyamphetamine (MDA): A Randomized Controlled Trial in Humans. Public Library of Science, 2010.

Baggott, Matthew J., et al. Investigating the Mechanisms of Hallucinogen-Induced Visions Using 3,4-Methylenedioxyamphetamine (MDA): A Randomized Controlled Trial in Humans. Public Library of Science, 2010.