Dr. Weibo Yin has served as an independent director since November 2011. He is the Honorary President of Chinese Society of Radiation Oncology and a board member of the International Congress of Radiation Oncology. Dr. Yin has served various positions such as professor emeritus, professor, associate professor and resident doctor in Cancer Hospital of Chinese Academy of Medical Sciences and Peking Union Medical University since 1957. In addition, Dr. Yin has published 155 research papers on radiation oncology, in 32 of which he was the first author. Dr. Yin received his M.D. degree from Peking Union Medical University in 1957.