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. Ancient psychoactive plant use in the North Andes In his article “ The Use of Psychoactive Plants and Fungi by Ancient Indigenous Populations of the North Andes,” Manuel Torres presents evidence of the widespread ceremonial use of entheogenic

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-restrained and are not always able to follow the routine protocol dictating slow ascent. Other subjects who can benefit from pre-acclimatization are people traveling by plane to high-altitude cities (e.g., The Andes or Tibet) or elite athletes facing competitions

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. E. ( 1983 ). Richard Spruce: An early ethnobotanist and explorer of the northwest Amazon and northern Andes . Journal of Ethnobiology, 3 ( 2 ), 139 – 147 . Retrieved February 1, 2018, from

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