La vera storia della marijuana

Self (as Dr. Donald Abrams)

Self (as Dr. David Bearman)

Self (as Dr. Manuel Guzman)

Self (as Dr. Jeffrey Hergenrather)

Self (as Dr. Sean McAllister)

Self (as Dr. Raphael Mechoulam)

Self (as Dr. Robert Melamede)

Self (as Dr. Donald Tashkin)