Obstructive Jaundice Caused by Metastatic Neuroendocrine Tumor of the Ampulla of Vater in a Young Adult: A Case Report. - Alsalman, Jaafar; Alquorain, Abdulaziz; Alyousef, Mohammed; Aldandan, Omran; Alzahrani, Ibrahim (Case Reports in Gastroenterology, 2024)