{{Cite journal| doi = 10.4414/SMW.2021.w30010| issn = 1424-3997 (Electronic) 0036-7672 (Linking)| volume = 151| issue = 33-34| last1 = Anwander| first1 = H.| last2 = Klingberg| first2 = K.| last3 = Gerber| first3 = J.| last4 = Bednarski| first4 = P.| last5 = Exadaktylos| first5 = A.| last6 = Muller| first6 = M.| title = Major trauma during COVID-19 in a level 1 trauma centre in Switzerland - a cohort study comparing the years 2020 and 2019| journal = Swiss Med Wkly| date = 2021-09-09| pmid = 34495600}}