References
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- National Institutes of Health. 2005. Theory at a Glance, 2nd ed. At: http://www.cancer.gov/PDF/481f5d53-63df-41bc-bfaf-5aa48ee1da4d/TAAG3.pdf.
- Prochaska J. O., Redding C. A., and Evers, K. E. 1997. The Transtheoretical Model and Stages of Change. In Health Behavior and Health Education: Theory, Research, and Practice, 2nd ed. San Francisco: Jossey-Bass. 60–84.
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