Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Stanford University - School of Medicine, Stanford University - School of Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - National Central Cancer Registry, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Stanford University, Stanford University, Erasmus University Rotterdam (EUR) - Department of Gastroenterology & Hepatology, Government of the United States of America - National Cancer Institute, World Health Organization (WHO) - International Agency for Research on Cancer (IARC), Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Office of Cancer Screening, Erasmus University Rotterdam (EUR) - Department of Public Health and Erasmus University Rotterdam (EUR) - Department of Public Health