Velicer, W.F., Prochaska, J.O., Fava, J.L., Laforge, R.G., and Rossi, J.S. (1999). Interactive versus noninteractive interventions and dose-response relationships for stage-matched smoking cessation programs in a managed care setting. Health Psychology, 18, 21–28.
Vicusi, W.K. (1992). Fatal Tradeoffs. New York: Oxford University Press.
Warner, K.E. (1986). Smoking and health implications of a change in the federal cigarette excise tax. Journal of the American Medical Association, 255, 1028–1032.
Whorwell, P.J., Prior, A., and Colgan, S.M. (1987). Hypnotherapy in severe irritable bowel syndrome: Further experience. Gut, 28, 423–425.
Whorwell, P.J., Prior, A., and Farragher, E.B. (1984). Controlled trial of hypnotherapy in the treatment of severe refractory irritable bowel syndrome. Lancet, 2 (8414), 1232– 1234.
Wildey, M.B., Woodruff, S.I., Agro, A., Keay, KD, Kenney, E.M., and Conway, T.L. (1995). Sustained effects of educating retailers to reduce cigarette sales to minors. Public Health Rep., 110, 625–629.
Wilkinson, R.G. (1996). Unhealthy Societies: The Afflictions of Inequality. London: Routledge.