scholarly journals Physical Activity and the Frequency of Acute Exacerbations in Patients with Chronic Obstructive Pulmonary Disease

Lung ◽  
2014 ◽  
Vol 193 (1) ◽  
pp. 63-70 ◽  
Author(s):  
M. Schönmann ◽  
N. A. Sievi ◽  
C. F. Clarenbach ◽  
T. Brack ◽  
M. Brutsche ◽  
...  
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