{{Cite journal| doi = 10.1097/MEJ.0000000000000837| issn = 1473-5695 (Electronic) 0969-9546 (Linking)| volume = 28| issue = 4| pages = 257–259| last1 = Mockel| first1 = M.| last2 = Nickel| first2 = C. H.| last3 = Behringer| first3 = W.| last4 = Backus| first4 = B.| title = Status of physician education in emergency medicine in four European countries: no primary specialty yet| journal = Eur J Emerg Med| date = 2021-07-01| pmid = 34187990}}