1.
Roelens M, Martin A, Friker B, Maximiano Sousa F, Thiabaud A, Vidondo B, Buchter V, Gardiol C, Vonlanthen J, Balmelli C, Battegay M, Berger C, Buettcher M, Cusini A, Flury D, Heininger U, Niederer-Loher A, Riedel T, Schreiber PW, Sommerstein R, Troillet N, Tschudin-Sutter S, Vetter P, Bernhard-Stirnemann S, Corti N, Gaudenz R, Marschall J, Nussbaumer-Ochsner Y, Senn L, Vuichard-Gysin D, Zimmermann P, Zucol F, Iten A, Keiser O. Evolution of COVID-19 mortality over time: results from the Swiss hospital surveillance system (CH-SUR). Swiss Med Wkly [Internet]. 2021 Nov. 24 [cited 2024 Mar. 28];151(4748):w30105. Available from: https://smw.ch/index.php/smw/article/view/3111