Development and validation of a patient reported outcome instrument for chronic obstructive pulmonary diseases

2014 ◽  
Vol 21 (9) ◽  
pp. 667-675 ◽  
Author(s):  
Jian-sheng Li ◽  
Ming-hang Wang ◽  
Xue-qing Yu ◽  
Su-yun Li ◽  
Yang Xie
2014 ◽  
Vol 133 (5) ◽  
pp. 1365-1372.e6 ◽  
Author(s):  
Karsten Weller ◽  
Adriane Groffik ◽  
Martin K. Church ◽  
Tomasz Hawro ◽  
Karoline Krause ◽  
...  

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