Dr. Ankita Gupta. “Estimating the Prevalence of Oral Manifestations in Covid-19 Patients: A Systematic Review”. Global Journal of Medical Research 23, no. J2 (May 5, 2023): 25–26. Accessed October 5, 2024. https://medicalresearchjournal.org/index.php/GJMR/article/view/102338.