1.
Pongchaichanon P, Pongchaichanon P, Yuthong-in C, Ramwong L, Sukcharoenjit J, Joomthong K, Sangangam T, Youngsa-ad W. Efficacy and adverse effects of Phyllanthus emblica combined with Andrographis paniculata syrup versus brown mixture for symptomatic cough relief in Long-COVID patients: A single-blind randomized controlled trial. Health Sci Tech Rev [internet]. 2026 Aug. 27 [cited 2026 Aug. 30];19(2):55-67. available from: https://li01.tci-thaijo.org/index.php/journalup/article/view/270665