[1] Univ Espiritu Santo, Km 2-5 Via Puntilla, Samborondon 0901952, Ecuador
[2] Respiralab Res Grp, Guayaquil, Ecuador
[3] Maastricht Univ, Med Ctr, Dept Pediat, Maastricht, Netherlands
[4] Maastricht Univ, Sch Oncol & Dev Biol, Maastricht, Netherlands
[5] Univ Catolica Santiago Guayaquil, Fac Ciencias Med, Inst Invest & Innovac Salud Integral, Guayaquil, Ecuador
[6] Univ Tecnol Equinoccial, Fac Ciencias Salud Eugenio Espejo, Ctr Invest Salud Publ & Epidemiol Clin, Quito, Ecuador
[7] IEDYT, Guayaquil, Ecuador
[8] Unidad Dialisis Norte UNIDIAL, Guayaquil, Ecuador
[9] Ctr Dialisis Fdn Renal Ecuador Inigo Alvarez de T, Guayaquil, Ecuador
[10] MEDICDIAL SA, Inst Rinon & Dialisis, Guayaquil, Ecuador
[11] NEFROSALUD, Guayaquil, Ecuador
[12] Hosp Dr Abel Gilbert Ponton, Guayaquil, Ecuador