Epidemiology, risk factors and clinical course of SARS-CoV-2 infected patients in a Swiss university hospital: An observational retrospective study. oleh Jean Regina, Matthaios Papadimitriou-Olivgeris, Raphaël Burger, Marie-Annick Le Pogam, Tapio Niemi, Paraskevas Filippidis, Jonathan Tschopp, Florian Desgranges, Benjamin Viala, Eleftheria Kampouri, Laurence Rochat, David Haefliger, Mehdi Belkoniene, Carlos Fidalgo, Antonios Kritikos, Katia Jaton, Laurence Senn, Pierre-Alexandre Bart, Jean-Luc Pagani, Oriol Manuel, Loïc Lhopitallier