scholarly journals National Study of Emergency Department Visits for Acute Exacerbation of Chronic Obstructive Pulmonary Disease, 1993-2005

2008 ◽  
Vol 15 (12) ◽  
pp. 1275-1283 ◽  
Author(s):  
Chu-Lin Tsai ◽  
Justin A. Sobrino ◽  
Carlos A. Camargo Jr
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