Pancreaticoduodenectomy with Preservation of Collateral Circulation or Revascularization for Biliary Pancreatic Cancer with Celiac Axis Occlusion: A Report of 2 Cases. - Kazuaki Shibuya; Hirofumi Kamachi; Tatsuya Orimo; Akihisa Nagatsu; Shingo Shimada; Kenji Wakayama; Hideki Yokoo; Toshiya Kamiyama; Akinobu Taketomi (American Journal of Case Reports, 2018)