[1] Mayo Clin, Scottsdale, AZ USA
[2] Saarland Univ Hosp, Hamburg, Germany
[3] Inst Infect, Sao Paulo, Brazil
[4] Univ N Carolina, Chapel Hill, NC USA
[5] Rush Presbyterian St Lukes Med Ctr, Chicago, IL 60612 USA
[6] Univ Bari, Clin Infect Dis, Bari, Italy
[7] Hop Beaujon, Clichy, France
[8] Hoffman La Roche Inc, Nutley, NJ USA