[1] Brown Univ, Warren Alpert Med Sch, Div Infect Dis, Providence, RI 02912 USA
[2] Univ Alabama Birmingham Hosp, Birmingham, AL USA
[3] Tufts Univ, Sch Med, Lahey Clin Med Ctr, Burlington, MA USA
[4] St Jude Childrens Res Hosp, Childrens Infect Def Ctr, Memphis, TN 38105 USA
[5] NIH, Dept Crit Care Med, Bethesda, MD 20892 USA
[6] Univ Texas MD Anderson Canc Ctr, Infect Dis Sect, Houston, TX 77030 USA
[7] Wake Forest Univ, Bowman Gray Sch Med, Infect Dis Sect, Winston Salem, NC USA
[8] Washington Univ, Sch Med, Div Infect Dis, St Louis, MO 63110 USA
[9] Hosp Gen Gregorio Maranon, Serv Microbiol Clin & E Infecciosas, Madrid, Spain
[10] Erasmus Univ, Med Ctr, Rotterdam, Netherlands