Critical appraisal (II): Application to scientific articles on therapeutic interventions, systematic reviews and meta-analyses Álvaro Gimeno Díaz de Atauri; María Salomé Albi Rodríguez; Elena Pérez González; Jaime Javier Cuervo Valdés; Juan Ruiz-Canela Cáceres; Javier González de Dios;

Evidence-based medicine: 5 steps to navigate uncertainty Rafael Martín-Masot; Carlos Ochoa Sangrador; Jaime Javier Cuervo Valdés; Carolina Blanco Rodríguez; Paz González Rodríguez; Javier González de Dios;

COVID-19: Critical appraisal of the evidence Paz González Rodríguez; Begoña Pérez-Moneo Agapito; María Salomé Albi Rodríguez; Pilar Aizpurua Galdeano; María Aparicio Rodrigo; María Mercedes Fernández Rodríguez; María Jesús Esparza Olcina; Carlos Ochoa Sangrador;