MULDER, Riaan; LAYLOO, Nazreen; MULDER VAN STADEN, Suné. COVID-19: Focus on masks and respirators - Implications for oral health-care workers. South African Dental Journal, [S. l.], v. 75, n. 4, p. 175–182, 2020. DOI: 10.17159/2519-0105/2020/v75no4a1. Disponível em: https://journals.assaf.org.za/index.php/sadj/article/view/8767. Acesso em: 17 jul. 2024.