Efficacy and safety of an extract of Pelargonium sidoides (EPs 7630) in adults with acute bronchitis:
A randomised, double-blind, placebo-controlled trial
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PII: S0944-7113(04)70346-3
doi:10.1078/1433-187X-00308
© 2003 Urban & Fischer Verlag. Published by Elsevier Inc. All rights reserved.
