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GPs' assessment of patients' readiness to change diet, activity and smoking
Marieke W Verheijden, J Carel Bakx, Ine (C)G Delemarre, Anne J Wanders, Nellie M van Woudenbergh, Ben JAM Bottema, Chris van Weel and Wija A van Staveren
British Journal of General Practice 2005; 55 (515): 452-457.