This suggests Europeans used coca leaves earlier than previously thought ... Of the approximately 200 members in the genus Erythroxylum, most species contain the central nervous system stimulant ...
Chapel Hill: University of North Carolina Press. Hanna, Joel M., and Conrad A. Hornick. 1977. "Use of Coca Leaf in Southern Peru: Adaptation or Addiction." Bulletin on Narcotics 29 (1): 63–74. Karch, ...
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Coca — used to make cocaine — discovered in brains of 17th-century bodies in ItalyIt comes from Erythroxylum coca ... The researchers noted that there was no evidence of coca leaves being used as a recognized treatment for disease or ailment during the time of the patients ...
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