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Journal of Clinical Epidemiology > 2011 > 64 > 6 > 637-657
Journal of Clinical Epidemiology > 2010 > 63 > 10 > 1061-1070
Journal of Clinical Epidemiology > 2011 > 64 > 6 > 637-657
Journal of Clinical Epidemiology > 2010 > 63 > 10 > 1061-1070