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Roland Griffiths, Ph.D. on Psilocybin, Psychedelic Therapies & Mystical Experiences

1:17:52 | Jan 19th, 2017

Dr. Roland R. Griffiths is a clinical pharmacologist at Johns Hopkins and has been researching mood-altering compounds for over 40 years. As an unusually prolific scientist, having published over 360-times, he's also responsible for having started th...Show More