Journal of Clinical Epidemiology
Volume 62, Issue 12 , Page 1225, December 2009

Focus on nonexperimental approaches

Editors, Institute for population Health - Centre for Global Health, University of Ottawa, 1 Stewart Street, Ottawa, Ontario, Canada K1N 6N5

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PII: S0895-4356(09)00292-3

doi:10.1016/j.jclinepi.2009.09.003

Journal of Clinical Epidemiology
Volume 62, Issue 12 , Page 1225, December 2009

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