Progress in the surveillance of respiratory syncytial virus (RSV) in Europe: 2001-2008 Meerhoff, T J and Mosnier, A and Schellevis, F and Paget, W J and the EISS RSV Task Group, Eurosurveillance, 14, 19346 (2009), https://doi.org/10.2807/ese.14.40.19346-en