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\bibitem{Velicer_etal1998} Velicer, W. F., Prochaska, J. O., Fava, J. L., Norman, G. J., \& Redding, C. A. (1998). Smoking cessation and stress management : applications of the transtheoretical model of behavior change. \textit{Homeostasis}, \textit{38}, 216--233.

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