Department of Health and Human Services (US). Office of Disease Prevention and Health Promotion. Healthy people 2010 2nd ed. Objectives for improving health, vol. 2. Washington: US Government Printing Office; 2000.
2.
ProchaskaJOReddingCAEversKE. The transtheoretical model and stages of change. In: GlanzAMRimerBKLewisFM, editors. Health behavior and health education. 3rd ed.San Francisco: Jossey-Bass; 2002.
