RT Journal Article SR Electronic(1) A1 Zambon, M A1 on behalf of EISS (European Influenza Surveillance Scheme) YR 1998 T1 Sentinel surveillance of influenza in Europe 1997-1998 JF Eurosurveillance VO 3 IS 3 SP 29SP 91 OP 31 DO https://doi.org/10.2807/esm.03.03.00091-en UL https://www.eurosurveillance.org/content/10.2807/esm.03.03.00091-en