Tugwell, P., Pottie, K., Welch, V., Ueffing, E., Chambers, A., & Feightner, J. (2011). Evaluation of evidence-based literature and formulation of recommendations for the clinical preventive guidelines for immigrants and refugees in Canada. Canadian Medical Association.

Tugwell, Peter, Kevin Pottie, Vivian Welch, Erin Ueffing, Andrea Chambers, و John Feightner. Evaluation of Evidence-based Literature and Formulation of Recommendations for the Clinical Preventive Guidelines for Immigrants and Refugees in Canada. Canadian Medical Association, 2011.

Tugwell, Peter, et al. Evaluation of Evidence-based Literature and Formulation of Recommendations for the Clinical Preventive Guidelines for Immigrants and Refugees in Canada. Canadian Medical Association, 2011.