If you are unfamilar with this book the Shang Han Lun was complied around the year 200 by a Chinese physician named Zhang Zhonjing. It is one of the oldest clinical text books in the worlds and covers a number of herbal formulas used for the treatment of infectious disease. The research by Dr. Stephen Boyanton (PhD) examines a number of epidemiological factors taking place during the time the Shang Han Lun was compiled which may influences it’s rise in popularity, fame and usefullness to the physicans of both it’s time and the modern era. You can listen / watch additiona interviews with Dr. Boyanton on the Shang Han Lun here.