Evaluation of the Associations between Dry Mouth, Oral Lesions, and Orofacial Pain with COVID-19: A Systematic Review and Meta-analysis. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 4, p. 1160–1166, 2022. DOI: 10.47750/pnr.2022.13.04.162. Disponível em: https://pnrjournal.com/index.php/home/article/view/3114.. Acesso em: 5 jun. 2026.