Affiliation: | 1. Latin American Collaborative Research Center of Tokyo Medical and Dental University, Santiago, Chile;2. Department of Digestive and General Surgery, Tokyo Medical and Dental University, Tokyo, Japan;3. Department of Human Pathology, Tokyo Medical and Dental University, Tokyo, Japan;4. Unit of Coloproctology, Las Condes Clinic, Santiago, Chile;5. Department of Digestive Endoscopy, Magallanes Hospital, Punta Arenas, Chile;6. Department of Gastroenterology, Dr. Eduardo Pereira Hospital, Valparaiso, Chile;7. Chilean‐Japanese Institute for Digestive Diseases, San Borja Arriaran Hospital, Santiago, Chile;8. Department of Surgical Specialties, Tokyo Medical and Dental University, Tokyo, Japan |