Ravi K S, Kiran M Naik, Vinay S Bhat, and Aniketh VR. “Prevalence and Recovery of Olfactory Dysfunction in COVID-19 Patients”. International Journal of Health and Clinical Research, vol. 4, no. 23, Dec. 2021, pp. 399-01, https://ijhcr.com/index.php/ijhcr/article/view/4501.