Needham and Lu (1974), p. 150. From ancient Chinese fumigation techniques with "toxic smokes" for pests and "holy smokes" for demons, "what started as a 'smoking out' of undesirable things, changed now to a 'smoking in' of heavenly things into oneself."
Joseph Needham, Ho Ping-Yu, and Lu Gwei-djen (1980). Science and Civilisation in China: Volume 5, Chemistry and Chemical Technology; Part 4, Spagyrical Discovery and Invention. Cambridge University Press, p. 213.
Brand, E. Joseph et Zhao, Zhongzhen, « Cannabis in Chinese Medicine: Are Some Traditional Indications Referenced in Ancient Literature Related to Cannabinoids? », Frontiers in Pharmacology, vol. 8, , p. 108 (PMID28344554, PMCID5345167, DOI10.3389/fphar.2017.00108)
Brand, E. Joseph et Zhao, Zhongzhen, « Cannabis in Chinese Medicine: Are Some Traditional Indications Referenced in Ancient Literature Related to Cannabinoids? », Frontiers in Pharmacology, vol. 8, , p. 108 (PMID28344554, PMCID5345167, DOI10.3389/fphar.2017.00108)
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Wang et Shi, « Industrial Hemp: China's Experience and Global Implications », Review of Agricultural Economics, vol. 21, no 2, , p. 344–357 (CiteSeerx10.1.1.868.9241)