Maximiano Sousa, F., M. Roelens, B. Friker, A. Thiabaud, A. Iten, A. Cusini, D. Flury, M. Buettcher, F. Zucol, C. Balmelli, P. Zimmermann, N. Troillet, D. Vuichard-Gysin, P. W. Schreiber, S. Bernhard-Stirnemann, S. Tschudin-Sutter, Y. Nussbaumer-Ochsner, R. Sommerstein, R. Gaudenz, J. Marschall, L. Senn, C. Gardiol, O. Keiser, G. Schüpbach, M. Wymann, and B. Vidondo. “Risk Factors for Severe Outcomes for COVID-19 Patients Hospitalised in Switzerland During the First Pandemic Wave, February to August 2020: Prospective Observational Cohort Study”. Swiss Medical Weekly, vol. 151, no. 2930, July 2021, p. w20547, doi:10.4414/smw.2021.20547.