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Öberg, K; Knigge, U; Kwekkeboom, D; Perren, A; ESMO Guidelines, Working Group (2012). Neuroendocrine gastro-entero-pancreatic tumors: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Annals of oncology, 23 Suppl 7, vii124-30. Oxford: Oxford University Press 10.1093/annonc/mds295
