RT Journal Article SR Electronic(1) A1 Hubert, B A1 Caugant, D A YR 1997 T1 Recent changes in meningococcal disease in Europe JF Eurosurveillance VO 2 IS 10 SP 69SP 145 OP 71 DO https://doi.org/10.2807/esm.02.10.00145-en UL https://www.eurosurveillance.org/content/10.2807/esm.02.10.00145-en