[1] Hosp Clin Red Salud UC CHRISTUS, Unidad Pacientes Crit Pediat, Santiago, Chile
[2] Pontificia Univ Catolica Chile, Escuela Enfermeria, Fac Med, Mg Psicol Social, Santiago, Chile
[3] Pontificia Univ Catolica Chile, Fac Med, Div Pediat, Dept Cardiol & Enfermedades Resp, Santiago, Chile
[4] Pontificia Univ Catolica Chile, Fac Med, Escuela Enfermeria, Mg Psicol Salud, Santiago, Chile
[5] Univ Adolfo Ibanez, Fac Psicol, Santiago, Chile