U. I., N., N. G. U., and M. N. N. “Features of the Course of Rhinosinusitis in Different Age Groups”. American Journal of Pediatric Medicine and Health Sciences (2993-2149), vol. 1, no. 10, Dec. 2023, pp. 11-13, http://grnjournal.us/index.php/AJPMHS/article/view/1747.