RT Journal Article SR Electronic(1) A1 Editorial Committee, Collective YR 1997 T1 Diphtheria in the 1990s - do we have all the answers? JF Eurosurveillance VO 2 IS 8 SP 202 OP DO https://doi.org/10.2807/esm.02.08.00202-en UL https://www.eurosurveillance.org/content/10.2807/esm.02.08.00202-en