Predictive capacity for breastfeeding and determination of the best cut-off point for the breastfeeding self-efficacy scale-short form Josep Vicent Balaguer-Martínez; Rubén García-Pérez; Ana Gallego-Iborra; Elena Sánchez-Almeida; María Dolores Sánchez-Díaz; Edurne Ciriza-Barea;

Frequency, risk and impact measures in epidemiology Carlos Ochoa Sangrador; Eduardo Ortega Páez; Manuel Molina Arias; Fernando Carvajal Encina; Eduardo Cuestas Montañes;

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;