[1] Hosp Exequiel Gonzalez Cortes, Unidad Infectol, San Miguel, Chile
[2] Clin Santa Maria, Unidad Infectol, Santiago, Chile
[3] Univ Los Andes, Fac Med, Bogota, Colombia
[4] Univ Chile, Fac Med, Santiago, Chile
[5] Hosp Puerto Montt, Unidad Infectol, Puerto Montt, Chile
[6] Hosp Puerto Montt, Lab Microbiol, Puerto Montt, Chile
[7] Com Antimicrobianos & PROA SOCHINF, Santiago, Chile
[8] Fac Med Univ San Sebastian, Fac Med, Concepcion, Chile
[9] Pontificia Univ Catolica Chile, Escuela Med, Dept Enfermedades Infecciosas Adulto, Santiago, Chile
[10] Red Salud UC CHRISTUS, Santiago, Chile
[11] Hosp San Juan Dios, Unidad Infectol Pediat, Pasay, Philippines
[12] Clin Alemana, Unidad Infectol Pediat, Vitacura, Chile
[13] Univ Desarrollo, Fac Med, Santiago, Chile