M. Dworkin, L. Park, und S. Borchardt. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 44 (6):
810--6(März 2007)PMID: 17304452.
P. Wals, G. Deceuninck, {. Boucher, und M. Ouakki. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 46 (8):
e75--77(April 2008)PMID: 18444843.