The Italian national surgical site infection surveillance programme and its positive impact, 2009 to 2011 Marchi, M and Pan, A and Gagliotti, C and Morsillo, F and Parenti, M and Resi, D and Moro, M L and Sorveglianza Nazionale Infezioni in Chirurgia (SNICh) Study Group, Eurosurveillance, 19, 20815 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.21.20815