Fisseler-Eckhoff A, Demes M. Neuroendocrine Tumors of the Lung. Cancers. 2012;4(3):777-798. doi:10.3390/cancers4030777.
Hilal T. Current understanding and approach to well differentiated lung neuroendocrine tumors: an update on classification and management. Therapeutic Advances in Medical Oncology. 2017;9(3):189-199. doi:10.1177/1758834016678149.
Thomas CF, Jett JR, Strosberg JR. Lung neuroendocrine (carcinoid) tumors: Epidemiology, risk factors, classification, histology, diagnosis, and staging. UpToDate website. https://www.uptodate.com/contents/lung-neuroendocrine-carcinoid-tumors-epidemiology-risk-factors-classification-histology-diagnosis-and-staging. Updated Feb. 26, 2018. Accessed July 9, 2018.