Today, 38 years ago, on August 8, 1987 (Lunar Calendar, June 14, 1987), the founder of Chinese digestive medicine, Zhang Yuan, passed away. This is a photo of Zhang Yuan. On August 8, 1987, Zhang Yuan, a pioneer of medicine, famous medical scientist and medical educator, died in Beijing at the age of 90. He served as vice president of the Chinese Academy of Medical Sciences, vice president of the Chinese Medical University, and has a high degree of knowledge in the field of clinical and academic medicine. He was the founder of Chinese digestive medicine.