T. Bekci, Taha, Recep Kesli, and Nadir Kocak. “Serum Neopterin Levels in Obese and Nonobese Patients With Obstructive Sleep Apnea Syndrome”. Annals of Medical Research 17, no. 3 (May 25, 2021): 0165–0168. Accessed May 19, 2024. http://www.annalsmedres.org/index.php/aomr/article/view/3493.