(Q78616413)
Statements
[Epidemiology of invasive pneumococcal disease in children in Gipuzkoa (Spain) from 1981 to 2001] (English)
Iglesias Sánchez L
Pérez-Yarza EG
García-Arenzana JM
Valiente Méndez A
Pérez-Trallero E
1 November 2002