Pediatric research in Spain: Challenges and opportunities Laura Moreno-Galarraga; Cesar Gracía Vera; Irene Rivero-Calle; Federico Martinón-Torres; Ignacio Diez López; Fernando Cabañas; Cristina Calvo;

Diagnostic study of pertussis using PCR in primary care clinics Cristina Rodríguez Arranz; M.ª Rosa Albañil Ballesteros; César García Vera; Miriam Blasco Alberdi; M. Josefa Gil de Gómez;

Results of a national survey on knowledge and use of complementary and alternative medicine by paediatricians Roi Piñeiro Pérez; Esmeralda Núñez Cuadros; Lourdes Cabrera García; Ignacio Díez López; Raquel Escrig Fernández; María Ángeles Gil Lemus; Santiago Manzano Blanco; Belén Rodríguez Marrodán; Cristina Calvo;