Mitev, Vanyo. “Prevention and Treatment of COVID‑19 and Influenza With Bromhexine and High Doses of Colchicine”. Trends in Immunotherapy 9, no. 3 (July 9, 2025): 238–251. Accessed February 9, 2026. https://ojs.ukscip.com/index.php/ti/article/view/1162.