Tumour diameter is not reliable for management of non-secreting pancreatic neuroendocrine tumours oleh Logan Mills, Panagiotis Drymousis, Yogesh Vashist, Christoph Burdelski, Andreas Prachalias, Parthi Srinivasan, Krishna Menon, Corina Cotoi, Saboor Khan, Judith Cave, Thomas Armstrong, Martin O Weickert , Jakob Izbicki, Joerg Schrader, Andreja Frilling, John K Ramage, Raj Srirajaskanthan