L. Chui, T. Chiu, J. Kakulphimp, и G. Tyrrell. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 14 (5):
473--479(мая 2008)PMID: 18294244.
D. Whiley, P. Buda, J. Bayliss, L. Cover, J. Bates, и T. Sloots. European Journal of Clinical Microbiology & Infectious Diseases: Official Publication of the European Society of Clinical Microbiology, 23 (9):
705--710(сентября 2004)PMID: 15248092.