RT Journal Article SR Electronic(1) A1 Matter, H. C. A1 Sentinella Arbeitsgemeinschaft YR 1999 T1 Pertussis surveillance in Switzerland, 1992 to 1997 – a large epidemic in 1994. What next? JF Eurosurveillance VO 4 IS 12 SP 130SP 51 OP 133 DO https://doi.org/10.2807/esm.04.12.00051-en UL https://www.eurosurveillance.org/content/10.2807/esm.04.12.00051-en