1. Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Center for Gastric Cancer, National Cancer Center, Goyang, Korea.
3. Department of Pathology, Korea University Guro Hospital, Seoul, Korea.
4. Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
5. Department of Pathology, Chungnam National University Sejong Hospital, Chungnam National University School of Medicine, Sejong, Korea.
6. Department of Pathology, Yeungnam University College of Medicine, Daegu, Korea.
7. Department of Hospital Pathology, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea.
8. Department of Pathology, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea.
9. Department of Pathology, Dankook University College of Medicine, Cheonan, Korea.
10. Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
11. Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
12. Department of Pathology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
13. LabGenomics Clinical Laboratories, Seongnam, Korea.
14. St. Maria Pathology Laboratory, Busan, Korea.
15. Department of Pathology, Soonchunhyang University Seoul Hospital, Seoul, Korea.
16. Department of Pathology, Inha University School of Medicine, Incheon, Korea.
17. Department of Pathology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
18. Department of Pathology, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea.
19. Department of Pathology, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea.
20. Department of Pathology, Dong-A University College of Medicine, Busan, Korea.
21. Department of Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Korea.
22. Department of Hospital Pathology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
23. Department of Pathology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea.