[1] Hosp 12 Octubre, Dept Nephrol, Madrid, Spain
[2] Hosp 12 Octubre, Infect Dis Unit, Madrid, Spain
[3] Hosp Clin Barcelona, Dept Infect Dis, Barcelona, Spain
[4] Hosp Puerta de Hierro, Dept Internal Med, Madrid, Spain
[5] Bellvitge Hosp, Dept Infect Dis, Barcelona, Spain
[6] Hosp Reina Sofia, Dept Infect Dis, Cordoba, Spain
[7] Hosp Valle De Hebron, Dept Infect Dis, Barcelona, Spain
[8] Hosp Gregorio Maranon, Dept Microbiol & Infect Dis, Madrid, Spain
[9] Hosp Ramon & Cajal, Dept Infect Dis, E-28034 Madrid, Spain
[10] Hosp Cruces, Dept Infect Dis, Bilbao, Spain