Saliva as an Alternative to Nasopharyngeal Swab Specimen for Reverse-transcription Polymerase Chain Reaction (RT-PCR) Diagnosis of SARS-CoV-2 Infection: A Systematic Review and Meta-analysis. Acta Medica Philippina, [S. l.], 2022. DOI: 10.47895/amp.vi0.3298. Disponível em: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/3298. Acesso em: 7 apr. 2025.