Research ethics: From principles to practical aspects Gonzalo Solis Sánchez; Guillermo Alcalde Bezhold; Iciar Alfonso Farnós;

Gender inequalities in authorship of the main Spanish medical journals in 2017 Sebastián Tornero Patricio; Inmaculada O. Alonso Rueda; Julia García Gozalbes; José Antonio Domínguez Domínguez; Liliana Charris-Castro; María Dolores González-Soria; María del Mar García Calvente;

National recommendations on pediatric donation Antonio Rodríguez Núñez; Alicia Pérez Blanco;