Journal of Clinical Epidemiology
Volume 56, Issue 11 , Page CO2, November 2003

Journal of Clinical Epidemiology

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PII: S0895-4356(03)00362-7

doi:10.1016/S0895-4356(03)00362-7

Journal of Clinical Epidemiology
Volume 56, Issue 11 , Page CO2, November 2003

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