{{Cite journal| doi = 10.1016/s0196-0644(98)70144-1| issn = 0196-0644 (Print) 0196-0644 (Linking)| volume = 32| issue = 2| pages = 243–7| last = Osterwalder| first = J. J.| title = Emergency medicine in Switzerland| journal = Ann Emerg Med| date = 1998-08-13| pmid = 9701310}}