Early evidence of effectiveness of digital contact tracing for SARS-CoV-2 in Switzerland. Swiss Medical Weekly, [S. l.], v. 150, n. 5153, p. w20457, 2020. DOI: 10.4414/smw.2020.20457. Disponível em: https://www.smw.ch/index.php/smw/article/view/2931. Acesso em: 14 oct. 2025.