O ̈berg K. .; Astrup, L. .; Eriksson, B. .; Falkme, S. .; Falkmer, U. .; Gustafse, J. .; Haglund, C. .; Knigge, U. .; Vatn, M. .; Va ̈lima ̈ki M. . Guidelines for the Management of Gastroenteropancreatic Neuroendocrine Tumours (including Bronchopulmonary and Thymic Neoplasms) Part I—General Overview. AO 2004, 43, 617-625.