NIKHRA, Vinod. SARS-CoV-2 Infection, COVID-19, and long covid: Saga of erratic immune response, waning immunity, and immune system failure. Journal of Pulmonology and Respiratory Research, [S. l.], v. 5, n. 1, p. 078–087, 2021. DOI: 10.29328/journal.jprr.1001030. Disponível em: https://www.pulmonolrespirjournal.com/jprr/article/view/jprr-aid1030. Acesso em: 10 oct. 2025.