Impact of Radical Pancreaticoduodenectomy with Portal Vein Resection and Extensive Surrounding Soft Tissues on the Long-term Outcomes for Pancreatic Head Cancer. (2021) - Saiura, A.; Ito, H.; Oba, A.; Inoue, Y.; Mise, Y.; Takahashi, Y.; Ono, Y.; Sato, T.; Yoshioka, R.