{{Cite journal| doi = 10.1186/s12873-020-00397-w| issn = 1471-227X (Electronic) 1471-227X (Linking)| volume = 21| issue = 1| pages = 4| last1 = Chastonay| first1 = O. J.| last2 = Lemoine| first2 = M.| last3 = Grazioli| first3 = V. S.| last4 = Canepa Allen| first4 = M.| last5 = Kasztura| first5 = M.| last6 = Moullin| first6 = J. C.| last7 = Daeppen| first7 = J. B.| last8 = Hugli| first8 = O.| last9 = Bodenmann| first9 = P.| title = Health care providers' perception of the frequent emergency department user issue and of targeted case management interventions: a cross-sectional national survey in Switzerland| journal = BMC Emerg Med| date = 2021-01-09| pmid = 33413163}}