1. Metabolic Epidemiology Branch Division of Cancer Epidemiology and Genetics National Cancer Institute Bethesda MD USA
2. Biostatistics Branch Division of Cancer Epidemiology and Genetics National Cancer Institute Bethesda MD USA
3. Center for Applied Microbiome Science Pathogen and Microbiome Institute Northern Arizona University Flagstaff AZ USA
4. Digestive Oncology Research Center Digestive Diseases Research Institute Tehran University of Medical Sciences Tehran Iran
5. Department of Internal Medicine Lorestan University of Medical Sciences Khorramabad Iran
6. Liver and Pancreatobiliary Diseases Research Center Digestive Diseases Research Institute Tehran University of Medical Sciences Tehran Iran
7. Department of Biology School of Computer, Mathematical, and Natural Sciences Morgan State University Baltimore MD USA
8. Cancer Genomics Research Laboratory Division of Cancer Epidemiology and Genetics National Cancer Institute Bethesda MD USA
9. Leidos Biomedical Research Laboratory, Inc. Frederick National Laboratory for Cancer Research Frederick MD USA
10. Digestive Disease Research Center Digestive Diseases Research Institute Tehran University of Medical Sciences Tehran Iran