[1] Infect Dis Clin Res Program, Bethesda, MD USA
[2] Duke Univ, Med Ctr, Duke Clin Res Inst, Durham, NC USA
[3] Maria Vittoria Hosp, Turin, Italy
[4] Univ Naples Federico II, Naples, Italy
[5] Flinders Med Ctr, Bedford Pk, SA, Australia
[6] Osped Circolo Varese, Varese, Italy
[7] Mater Misericordiae Univ Hosp, Dublin, Ireland
[8] Univ Med Ctr Besancon, Besancon, France
[9] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[10] Cairo Univ, Sch Med, Cairo, Egypt
[11] Amer Univ Beirut, Med Ctr, Beirut, Lebanon
[12] CHU Nancy Brabois, Nancy, France
[13] Duke Univ, Med Ctr, Dept Med, Durham, NC 27710 USA
[14] Alfred Hosp, Melbourne, Vic, Australia
[15] Osped Riuniti Bergamo, Bergamo, Italy