Christian RätschChristian Rätsch, is an Ethnologist and Ethnopharmacologist, speaker, and author. He studies shamanic cultures and their use of psychoactive plants worldwide since many years. He wrote a number of books, among others the Encyclopedia of Psychoactive lants the standard work for the psychoactive ethnobotanical field now in its 12th reprint (original German edition). Read More Read Less
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