1. Department of Gastroenterology, Shenzhen People's Hospital (the Second Clinical Medical College, Jinan University; the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
2. Department of Hematology, Yantian District People's Hospital, Shenzhen 518020, Guangdong, China
3. Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou 510030, China
4. Department of Medical Administration, Huizhou Institute of Occupational Diseases Control and Prevention, Huizhou 516000, Guangdong, China
5. Department of Emergency, Shenzhen People's Hospital (the Second Clinical Medical College, Jinan University; the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
6. Department of General Surgery, Shenzhen Children's Hospital, Shenzhen 518026, Guangdong, China
7. Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen 518020, Guangdong, China