scholarly journals Long-term treatment of chronic obstructive pulmonary disease with salmeterol and the additive effect of ipratropium

2000 ◽  
Vol 15 (5) ◽  
pp. 878-885 ◽  
Author(s):  
J.A. van Noord ◽  
D.R.A.J. de Munck ◽  
Th.A. Bantje ◽  
W.C.J. Hop ◽  
M.L.m Akveld ◽  
...  
1999 ◽  
Vol 340 (25) ◽  
pp. 1948-1953 ◽  
Author(s):  
Romain A. Pauwels ◽  
Claes-Göran Löfdahl ◽  
Lauri A. Laitinen ◽  
Jan P. Schouten ◽  
Dirkje S. Postma ◽  
...  

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