Analysis of Acute Exposure to Environmental Pollutants and Severity of Covid-19: Case Study in Mexico City. Respirar, [S. l.], v. 13, n. 4, p. 175–186, 2022. Disponível em: https://respirar.alatorax.org/index.php/respirar/article/view/91. Acesso em: 15 jul. 2026.