Name: Effectiveness of Inhaled Corticosteroids in Chronic Obstructive Pulmonary Disease: Immortal Time Bias in
 Description: Published ahead of print on March 272003doi:10.1164/rccm.200210-1231OC. This Article. All Versions of this Article: 200210-1231OCv1
Category: Disease Epidemiology Torch
Url: http://ajrccm.atsjournals.org/cgi/content/full/168/1/49
Date: Oct 7, 2005
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