allow a third party such as COICA to participate in that part of the reexamination process. The patent, held by US entrepreneur Loren Miller, expired in 2003. See also Icaro Kambo Mariri Ibogaine Notes Explanatory notes Citations Further reading Burroughs, William S. and Allen Ginsberg. The Yage Letters. San Francisco: City Lights, 1963. Langdon, E. Jean Matteson & Gerhard Baer, eds. Portals of Power: Shamanism in South America. Albuquerque: University of New Mexico Press, 1992. Shannon, Benny. The Antipodes of the Mind: Charting the Phenomenology of the Ayahuasca Experience. Oxford: Oxford University Press, 2002. Taussig, Michael. Shamanism, Colonialism, and the Wild Man: A Study in Terror and Healing. Chicago: University of Chicago Press, 1986. External links Entheogens Herbal and fungal hallucinogens Indigenous culture of the Amazon Mixed drinks Polysubstance drinks