Cengiz PATA, Ümit Akyüz, Yusuf Erzin, and Arzu MERCAN. 2019. “Double-Balloon Enteroscopy: The Diagnosis and Management of Small Bowel Diseases”. Turkish Journal of Gastroenterology 21 (4):353-59. https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/2358.