Perrett, K; Granerod, J; Crowcroft, N; Carlisle, R; (2003) Changing epidemiology of hepatitis A: should we be doing more to vaccinate injecting drug users? Communicable disease and public health / PHLS, 6 (2). pp. 97-100. ISSN 1462-1843 https://researchonline.lshtm.ac.uk/id/eprint/8974 Full text not available from this repository.