1 Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
2 Suzhou Institute of Systems Medicine, Suzhou, China.
3 Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, China.
4 Institute of Clinical Medicine Research, Suzhou Science and Technology Town Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China.