Zeynep Gök Sargın, Nasser Alizadeh, and İbrahim Koral Önal. “Plasma Chromogranin A Levels: Consider the Associated Disease Entities ”. Turkish Journal of Gastroenterology 26, no. 6 (July 25, 2019): 528–528. Accessed July 11, 2025. https://tjg.avesjournals.com/index.php/tjg/article/view/3207.