ASO Author Reflections: Neoadjuvant Therapy for Pancreatic Cancer may Reduce Microscopic Venous Invasion, Which is an Independent Prognostic Factor Associated with Liver Recurrence. - Kubo H; Ohgi K; Sugiura T; Ashida R; Yamada M; Otsuka S; Yamazaki K; Todaka A; Sasaki K; Uesaka K (Annals of surgical oncology, 2022)