Cohort Study | Outcomes of patients with sporadic non-functioning pancreatic neuroendocrine neoplasms no larger than 2 cm under active surveillance. 30 Aug, 2022 | 11:57h | UTC Management of asymptomatic sporadic non-functioning pancreatic neuroendocrine neoplasms no larger than 2 cm: interim analysis of prospective ASPEN trial – British Journal of Surgery