• White, J. B.; Duncan, D. F.; Nicholson, T.; Bradley, D.; and Bonaguro, J. (2011). Generational shift and drug abuse in older Americans. Journal of Social, Behavioral, and Health Sciences, 5(1), 58-66.
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  • Duncan, D. F.; Nicholson, T.; White, J. B.; Bradley, D. B.; and Bonaguro, J. (2011). The Baby Boomer Effect: Changing Patterns of Substance Abuse Among Adults Ages 55 and Older. Journal of Aging and Social Policy, 22(3), 237-248.
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  • Duncan, D. F., Nicholson, T., White, J., and Bonaguro, J. (2009). Changing patterns of substance abuse by the elderly: The increasing contribution of illicit drugs. Paper presented at The Oxford Round Table on Substance Abuse: From Biology to Ethics, at Lincoln College, Oxford University, Oxford, England.

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  • Duncan, D. F., Nicholson, T., White, J., and Bonaguro, J. (2009). Changes in substance abuse by the elderly: The increasing contribution of illicit drugs. Poster presented at the Ninth Annual Meeting of the American Academy of Health Behavior, Hilton Head Island, SC.

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  • White, J., and Duncan, D. F. (2008). Generational shift and drug abuse among the aged. Paper presented at the 29th Annual Meeting of the Southern Gerontological Society, Atlanta, Georgia.

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  • Bell, L. J., Zimmerli, W. H., & Duncan, D. F. (2007). Household Social Environmental Influences on African-American Adolescents' Smoking Habits. Californian Journal of Health Promotion, 5(3), 26-31.

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  • Nimkar, S., Nicholson, T., Duncan, D., White, J., and Nagy, M. C. (2006). Behavioral patterns of marijuana users compared to multiple drug users. Paper presented at the 134th Annual Meeting of the American Public Health Association, Boston, Massachusetts.

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  • Duncan, D., White, J., and Nicholson, T. (2003). Using internet-based surveys to reach hidden populations: Case of nonabusive illicit drug users. American Journal of Health behavior, 27, 208-218.

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  • Nicholson, T., & Duncan, D. (2002). Is recreational drug use normal? Journal of Substance Use, 7, 116-123.

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  • Duncan, D. F. (2002, November 11). Drug Use by Workers. Paper presented at the Annual Meeting of the American Public Health Association, Philadelphia, Pennsylvania.

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  • Nicholson, T., White, J., Cline, R., Minors, P, & Duncan, D. (2001). Parents who report using illicit drugs: Findings and implications from the DRUGNET study. Psychological Reports, 88, 245-251.

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  • White, J. B., Nicholson, T., Minors, P., & Duncan, D. (2001). A demographic profile of employed users of illicit drugs. Current Topics in Managmenet, 6, 353-370

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  • Nicholson, T., White, J., and Duncan, D. F. (1998). Drugnet: A pilot study of adulkt recreational drug use via the WWW. Substance Abuse, 19(3), 109-121.

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  • Nicholson, T., Higgins, W., Turner, P., James, S., Stickle, F., and Pruitt, T. (1994). The relation between meaning in life and the occurrence of drug abuse: A retrospective study. Psychology of Addictive Behaviors, 8(1), 24-28.

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  • Duncan, D. F., and Petosa, R. (1994). Social and Community Factors Associated With Drug Use and Abuse Among Adolescents. In: T. P. Gullotta, G. R. Adams, and R. Montemayor (Eds), Substance Misuse in Adolescence (pp. 56-91). Thousand Oaks, CA: Sage.

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  • Duncan, D. F. (1987). Lifetime prevalence of "amotivational syndrome" among users and non users of Hashish. Psychology of Addictive Behaviors, 1(2), 114-119.

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  • Duncan, D. F. (1975). Marijuana and Heroin: A Study of Initiation of Drug Use by Heroin Addicts. British Journal of Addiction, 70(2), 192-197.

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  • Duncan, D. F. (1974). The acquisition, maintenance and treatment of polydrug dependence: A public health model. Journal of Psychedelic Drugs, 7(2), 209-213.

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