Antitussive effect of a fixed combination of Justicia adhatoda, Echinacea purpurea and Eleutherococcus senticosus extracts in patients with acute upper respiratory tract infection: A comparative, randomized, double-blind, placebo-controlled study
Keywords: Cough; Kan Jang; Randomized controlled trial; KJ; Kan Jang ® oral solution; PL; placebo; BH; bromhexine;