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The American Journal of Medicine > 2014 > 127 > 11 > 1126.e13-1126.e25
Journal of Clinical Epidemiology > 2013 > 66 > 4 > 415-425
The American Journal of Medicine > 2014 > 127 > 11 > 1126.e13-1126.e25
Journal of Clinical Epidemiology > 2013 > 66 > 4 > 415-425