1. Department of Clinical OncologyUniversity of Hong Kong Hong Kong People's Republic of China
2. Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, State Key Laboratory for Esophageal Cancer Prevention & TreatmentZhengzhou University Zhengzhou Henan People's Republic of China
3. Department of SurgeryUniversity of Hong Kong Hong Kong People's Republic of China
4. Hereditary Breast Cancer Family Registry Cancer Genetics CenterHong Kong Sanatorium and Hospital Hong Kong People's Republic of China
5. Division of Anatomical PathologyQueen Mary Hospital Hong Kong People's Republic of China
6. Department of GastroenterologyShanghai University of Medicine and Health Sciences, Affiliated Zhoupu Hospital Shanghai People's Republic of China