Liappis A P, Kan V L, Richman N C, Yoon B, Wong B, Simon G L
Department of Medicine, Division of Infectious Diseases, The George Washington University Medical Center, 2150 Pennsylvania Avenue N.W., Washington, DC 20037, USA.
Eur J Clin Microbiol Infect Dis. 2008 Jun;27(6):477-9. doi: 10.1007/s10096-008-0462-1. Epub 2008 Feb 12.