SONGÜR Y, SONGÜR N, KARACA H, ÖZSÖZ A, KOŞAY S. Changes in arterial blood gases during endoscopy in patients with chronic obstructive lung disease. Turkish Journal of Gastroenterology [Internet]. 1995 Jan. 1 [cited 2026 Jan. 1];6(1):60-5. Available from: https://www.turkjgastroenterol.org/index.php/tjg/article/view/571