1. Department of Allergy, Chinese Academy of Medical Sciences Peking Union Medical College Hospital Beijing China
2. Department of Gastroenterology, Chinese Academy of Medical Sciences Peking Union Medical College Hospital Beijing China
3. McKusick‐Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College Beijing China
4. Department of Pathology, Chinese Academy of Medical Sciences Peking Union Medical College Hospital Beijing China