1. West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, Sichuan, China
2. Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University – Maternal and Child Health Hospital of Henan Province, Zhengzhou 450052, China
3. Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
4. Chongqing Academy of Metrology and Quality Inspection, Chongqing, 401121, China