SONGÜR, Yıldıran, Nejla SONGÜR, Himmet KARACA, Ayşe ÖZSÖZ, and Sadun KOŞAY. “Changes in Arterial Blood Gases During Endoscopy in Patients With Chronic Obstructive Lung Disease”. Turkish Journal of Gastroenterology 6, no. 1 (January 1, 1995): 60–65. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/571.