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4. 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. Matthys H, Lizogub VG, Malek FA, Kieser M. Curr Med Res Opin; 2010 Jun; 26(6):1413-22. PubMed ID: 20387996 [Abstract] [Full Text] [Related]
15. Treatment of acute bronchitis with a liquid herbal drug preparation from Pelargonium sidoides (EPs 7630): a randomised, double-blind, placebo-controlled, multicentre study. Matthys H, Heger M. Curr Med Res Opin; 2007 Feb; 23(2):323-31. PubMed ID: 17288687 [Abstract] [Full Text] [Related]