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O.Cole, MD • A questionnaire study of drug use and life-styleamong A number of similar studies of college drug use, also college seniors, previously performed in 1969, was repeated at dating from the late 1960s, are reviewed by Berg. =Most of the same college in 1978 wlth identicalmethods.Moderate these studies indicate lower prevalence rates than the increases in marlluana use were found; cocaine use had study of Waiters et al, perhaps due to the fact that most increased dramatically; mostdoi:10.1001/archpsyc.1980.01780300100012 pmid:7235861 fatcat:4kjiyrrx2rhx3aiz63l23bbhgq