Carla Paola SR, Oscar Gabriel JC, Rebeca OL, Hazel VR, José Omar BR, Jordi G-C, et al. COVID-19 disease with persistently negative RT-PCR test for SARS-CoV-2. J Pulmonol Respir Res [Internet]. 2020 Aug. 7 [cited 2025 Oct. 10];4(1):006-10. Available from: https://www.pulmonolrespirjournal.com/jprr/article/view/jprr-aid1014