Karaveli Çakır, Selda, and Sami Evirgen. “The Effect of Virtual Reality on Pain and Anxiety During Colonoscopy: A Randomized Controlled Trial”. Turkish Journal of Gastroenterology 32, no. 5 (January 5, 2021): 451–457. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/3734.