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 marijuana. Because he tested the combination, we cannot
 tell just what effects can be attributed to marijuana alone.
 People cite a third study, done by Doctor Levitt, as proof
 marijuana is effective° They are mistaken° Doctor Levitt
 compared marijuana to THC in controlling nausea and
 vomiting_ and he concluded that THC was the more effective
 drug.
 A librarian can help locate copies of these studies
 should you want to see them for yourself. Sallan, et al.,
 "Antiemetic Effect of Delta-9-Tetrahydrocannibinol in
 Patients Receiving Cancer Chemotherapy," 293 New England
 Journal of Medicine 795_797 (1975); Changg et al., "Delta-9-
 Tetrahydrocannabinol as an Antiemetic in Cancer Patients
 Receiving High-Dose Methotrexate, _ 93o Annals of Internal
 Medicine 819-824 (1979); Levitt, et al._ _'Randomized Double
 Blind Comparison of Delta-9-Tetrahydrocannabinol (THC) and
 Marijuana As Chemotherapy Antiemetics, '_ (Meeting Abstract) 3
 Proceedings of the Annual Meeting of the American Society of
 Clinical Oncology 91 (1984).
 During the 1970's and 1980_s, a number of states set up
 research programs to give marijuana to cancer and glaucoma
 patients, on the chance it might help. Some people point to
 these programs as proof of marijuana_s usefulness.
 Unfortunately_ all research is not necessarily good
 scientific research. These state programs failed to follow
 responsible scientific methods Patients took marijuana
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