Setting up an enhanced surveillance of newly acquired hepatitis C infection in men who have sex with men: a pilot in London and South East region of England Ruf, M and Cohuet, S and Maguire, H and Brant, L J and Ramsay, M and Lattimore, S and Delpech, V and the SNAHC steering group, Collective, Eurosurveillance, 13, 19042 (2008), https://doi.org/10.2807/ese.13.47.19042-en