1. Graduate Program in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
2. National Institute of Biological Sciences (NIBS), Beijing 102206, China.
3. College of Life Sciences, Beijing Normal University, Beijing 100875, China.
4. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
5. Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA.
6. School of Life Sciences, Tsinghua University, Beijing 100084, China.