KILIÇ, M., BAYAN, K., YILMAZ, Şerif, TÜZÜN, Y., DURSUN, M., & CANORUÇ, F. (2006). Changes in pulse oximetry levels and factors affecting oxygen saturation during routine upper gastrointestinal endoscopy with or without sedation. Turkish Journal of Gastroenterology, 17(4), 279–282. Retrieved from https://www.turkjgastroenterol.org/index.php/tjg/article/view/1547