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Peytremann-Bridevaux I, Schusselé Filliettaz S, Berchtold P, Grossglauser M, Pavlickova A, Gilles I.Peytremann-Bridevaux I, et al.BMJ Open. 2021 Feb 23;11(2):e041956. doi: 10.1136/bmjopen-2020-041956.BMJ Open. 2021.PMID: 33622945Free PMC article.