1. Second Department of Surgery, University of Occupational and Environmental Health, Kitakyushu, Fukuoka 807‑8555, Japan
2. Central Research Laboratories, Toyama Industrial Technology Center, Takaoka, Toyama 933‑0981, Japan
3. Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980‑8575, Japan