1. Department of Gastrointestinal Surgery; Kanagawa Cancer Center; Yokohama Japan
2. Section of Pathology and Tumour Biology; Leeds Institute of Cancer and Pathology; University of Leeds; Leeds UK
3. Department of Pathology; Tokyo Metropolitan Geriatric Hospital; Tokyo Japan
4. Department of Biostatistics and Bioinformatics; The University of Tokyo; Tokyo Japan
5. Molecular Pathology and Genetics Division; Kanagawa Cancer Center Research Institute; Yokohama Japan
6. Department of Surgery; Tsuboi Cancer Center Hospital; Koriyama Japan
7. Department of Gastric Surgery; National Cancer Center Hospital; Tokyo Japan
8. Department of Pathology; GROW - School for Oncology and Developmental Biology; Maastricht University Medical Center+; Maastricht The Netherlands