Cytomegalovirus seroprevalence in pregnant women in Madrid: First step for a systematic screening María de la Calle; Paula Rodríguez-Molino; M. Pilar Romero Gómez; Fernando Baquero-Artigao;

Septicemia and meningitis associated with Haemophilus influenzae type b vaccine failure Sara López López; Teresa del Rosal; Susana Jiménez Bueno; Fernando Baquero-Artigao;

Neonatal pneumonia with poor evolution: An unsuspected agent Judith Lozano González; Alba de Tíscar Sánchez García;