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;

Consumption of ultra-processed products and wheezing respiratory diseases in children: The SENDO project Laura Moreno-Galarraga; Iratxe Martín-Álvarez; Alejandro Fernández-Montero; Bárbara Santos Rocha; Edurne Ciriza Barea; Nerea Martín-Calvo;