Regalado, Joyce Anne, Mariel Mae Tayam, Romiena Santos, and January Gelera. “Prevalence of Olfactory Dysfunction Among COVID-19 Patients With Self-Reported Smell Loss Versus Objective Olfactory Tests: A Systematic Review and Meta-Analysis”. Philippine Journal of Otolaryngology Head and Neck Surgery 36, no. 1 (May 29, 2021): 6. Accessed November 25, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/1649.