Randomised, double-blind, placebo-controlled trial of EPs 7630 in adults with COPD
Keywords: COPD; Efficacy; EPs 7630; Exacerbations; Herbal drug preparation; Pelargonium sidoidesAE, adverse event; AIDS, acquired immune deficiency syndrome; COPD, chronic obstructive pulmonary disease; EPs 7630, a herbal drug preparation from the roots of Pelargon