Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Göran Åkerström and Ola Hessman and Britt Skogseid,Timing and extent of surgery in symptomatic and asymptomatic neuroendocrine tumors of the pancreas in MEN 1,Langenbeck’s Archives of Surgery,1435-2443,Springer Science and Business Media LLC,2002-01-24,386,8,558-569,https://cir.nii.ac.jp/crid/1363670321193901952,https://doi.org/10.1007/s00423-001-0274-6