[1] Univ La Frontera, Fac Med, Dept Enfermeria, Temuco, Chile
[2] Univ La Frontera, Fac Med, Dept Med Interna, Temuco, Chile
[3] Univ Lleida, Dept Enfermeria & Fisioterapia, Lleida, Spain
[4] Univ Girona, Fac Enfermeria, Dept Enfermeria, Girona, Spain
[5] Univ Rovira & Virgili, Fac Enfermeria, Dept Enfermeria, Tortosa, Spain
[6] Univ Rovira & Virgili, Fac Enfermeria, Dept Enfermeria, Tarragona, Spain