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;

Current epidemiological situation of Streptococcus pyogenes infections Cristina Calvo; Jesús Saavedra Lozano;

Analytical data as a predictor of duration of hospital admission in human parechovirus infections Silvia Gómez-Anca; Paula Fresno Jorge; María Cabrerizo; María de Ceano-Vivas La Calle; Cristina Calvo;