RT Journal Article SR Electronic(1) A1 De Mateo, S YR 1997 T1 Meningococcal disease in Spain 1997 JF Weekly releases (1997–2007) VO 1 IS 1 SP 1107 OP DO https://doi.org/10.2807/esw.01.01.01107-en UL https://www.eurosurveillance.org/content/10.2807/esw.01.01.01107-en