1. The eminent German pathologist Siegfried Oberndorfer (1876–1944) and his landmark work on carcinoid tumors;Tsoucalas;Ann Gastroenterol,2011
2. The Complex Histopathological and Immunohistochemical Spectrum of Neuroendocrine Tumors-An Overview of the Latest Classifications;Gheorghișan-Gălățeanu;Int J Mol Sci,2023
3. Overview of the 2022 WHO Classification of Neuroendocrine Neoplasms;Rindi;Endocr Pathol,2022
4. Overview of the 2022 WHO Classification of Pituitary Tumors;Asa;Endocr Pathol,2022
5. WHO_classification_of_Tumours_Editorial_Board. Endocrine and Neuroendocrine Tumours. 8. 5th ed. Lyon, France 2022.