J. Bigham, M. Hutcheon, D. Patrick, и A. Pollard. Canada Communicable Disease Report = Relevé Des Maladies Transmissibles Au Canada, 27 (2):
13--8(января 2001)PMID: 11227821.
L. Archibald, M. den Dulk, K. Pallangyo, и L. Reller. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 26 (2):
290--6(февраля 1998)PMID: 9502444.
D. Tappe, H. Claus, J. Kern, A. Marzinzig, M. Frosch, и M. Abele-Horn. European Journal of Clinical Microbiology & Infectious Diseases: Official Publication of the European Society of Clinical Microbiology, 25 (1):
31--34(января 2006)PMID: 16418831.