Fig. 1From: EBV antibody and gastric cancer risk: a population-based nested case-control study in southern ChinaFlow chart of enrollment of study populationNote: The exclusion criteria are not mutually exclusiveAbbreviations: EBNA1: Epstein-Barr nuclear antigen 1; VCA: Viral capsid antigen; IgA: Immunoglobulin A; rOD: relative optical densityBack to article page