Direct RT-PCR Testing For COVID-19 Without RNA Extraction: A Rapid And Cost-Effective Diagnostic Approach. International Journal of Environmental Sciences, [S. l.], p. 929–937, 2025. DOI: 10.64252/anwrwk91. Disponível em: https://theaspd.com/index.php/ijes/article/view/2269.. Acesso em: 2 oct. 2025.