{{Cite journal| doi = 10.1186/s12873-021-00481-9| issn = 1471-227X (Electronic) 1471-227X (Linking)| volume = 21| issue = 1| pages = 92| last1 = von Allmen| first1 = M.| last2 = Grazioli| first2 = V. S.| last3 = Kasztura| first3 = M.| last4 = Chastonay| first4 = O.| last5 = Moullin| first5 = J. C.| last6 = Hugli| first6 = O.| last7 = Daeppen| first7 = J. B.| last8 = Bodenmann| first8 = P.| title = Does Case Management Provide Support for Staff Facing Frequent Users of Emergency Departments? A Comparative Mixed-Method Evaluation of ED Staff Perception| journal = BMC Emerg Med| date = 2021-08-06| pmid = 34348645}}