Liver metastases from pancreatic ductal adenocarcinoma: is there a place for surgery in the modern era? oleh Katsunori Imai, MD, PhD, FACS, Georgios A. Margonis, MD, PhD, Jaeyun Wang, MD, Christopher L. Wolfgang, MD, PhD, Hideo Baba, MD, PhD, FACS, Matthew J. Weiss, MD, FACS