La vera storia della marijuana

Donald Abrams

Self (as Dr. Donald Abrams)

David Bearman

Self (as Dr. David Bearman)

Manuel Guzman

Self (as Dr. Manuel Guzman)

Jeffrey Hergenrather

Self (as Dr. Jeffrey Hergenrather)

Sean McAllister

Self (as Dr. Sean McAllister)

Raphael Mechoulam