^○Roberto Valente, Urban Arnelo, Marcus Hansson Reuterwall, Zeeshan Ateeb, Miroslav Vujasinovic, Asif Halimi, Chiara Maria Scandavini, Marco Del Chiaro (Pancreatic Disease Unit Karolinska University Hospital)

^○Kisyo Mihara, Koichi Aiura, Masaya Sito (Department of Surgery, Kawasaki Municipal Kawasaki Hospital)

^○Kiyonori Tanoue, Masahiko Sakoda, Satoshi Iino, Youta Kawasaki, Motoyuki Hashiguchi, Yuko Mataki, Hiroshi Kurahara, Kousei Maemura, Hiroyuki Shinchi, Shinichi Ueno, Shoji Natsugoe (Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University, Kagoshima, Japan)

^○Keiichi Suzuki¹, Makoto Obu², Koudai Abe¹ (1.Department of Surgery, Kitasato Institute Hospital, Tokyo, Japan, 2.Department of Clinical Pathologyy, Kitasato Institute Hospital, Tokyo, Japan)

^○Hidenori Ohe¹, Teppei Momono¹, Taisuke Uemura¹, Haruku Fujita¹, Asami Okabe¹, Wataru Hirata¹, Kenjiro Hirai¹, Sato Suzaki¹, Tsuyoshi Tachibana¹, Hiroshi Okabe¹, Naoko Masuzawa², Shinshichi Hamada², Akira Mitsuyoshi¹ (1.Department of Surgery, Otsu City Hospital, Shiga, Japan, 2.Department of Pathology, Otsu City Hospital, Shiga, Japan)

^○Yuma Wada, Yuji Morine, Hiroki Teraoku, Yu Saito, Shuichi Iwahashi, Tetsuya Ikemoto, Shogo Ohta, Satoru Imura, Mitsuo Shimada (Department of Surgery, Tokushima University, Tokushima, Japan)