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To the Editor:—
I read Dr. Bowman's communication, which appeared in The Journal, July 21.There has come to my desk a reprint of an article from the Indian Journal of Medical Research, January 1942, entitled "Cannabis Sativa in Relation to Mental Diseases and Crime in India," by Col. Sir R. N. Chopra, who has been conducting a drug addiction inquiry for many years at the School of Tropical Medicine, Calcutta, India. Dr. Chopra is the author of "Tropical Therapeutics." The investigations by Dr. Chopra and his associates cover many years of scientific study, and their findings are representative of the entire population.Some of Dr. Chopra's studies on hemp drug addiction in India were published in July 1939 in the Indian Medical Research Memoirs. His recent report on "Cannabis Sativa in Relation to Mental Diseases and Crime in India" is the result of long intensive study of 1,800 hemp
Anslinger HJ. MORE ON MARIHUANA AND MAYOR LA GUARDIA'S COMMITTEE REPORT. JAMA. 1945;128(16):1187. doi:10.1001/jama.1945.02860330055025
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