Vaccination in pregnancy. Consensus document of the CAV-AEP and the SEGO Javier Álvarez Aldeán; Francisco José Álvarez García; Maria de la Calle Fernández-Miranda; Tatiana Figueras Falcón; Antonio Iofrío de Arce; Marta López Rojano; Irene Rivero Calle; Anna Suy Franch;

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;