Psychological distress during the COVID-19 pandemic: changes over time and the effect of socioeconomic status. Swiss Medical Weekly, [S. l.], v. 153, n. 9, p. 40111, 2023. DOI: 10.57187/smw.2023.40111. Disponível em: https://www.smw.ch/index.php/smw/article/view/3477. Acesso em: 29 oct. 2025.