E. Bouza, A. Burillo, and P. Muñoz. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 8 (5):
265--274(May 2002)PMID: 12047403.
D. Livermore. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 34 (5):
634--40(March 2002)PMID: 11823954.