Efficacy and tolerability of EPs 7630 tablets in patients with acute bronchitis: a randomised, double-blind, placebo-controlled dose-finding study with a herbal drug preparation from Pelargonium sidoides

2010 ◽  
Vol 26 (6) ◽  
pp. 1413-1422 ◽  
Author(s):  
H. Matthys ◽  
V.G. Lizogub ◽  
F.A. Malek ◽  
M. Kieser
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