Njoroge, J and Hope, VD and O'Halloran, C and Edmundson, C and Glass, R and Parry, JV and Ncube, F (2019) Are there missed opportunities for vaccinating against hepatitis B among people who inject drugs in the UK? Epidemiology and Infection, 147, (e244), e244. doi: 10.1017/S0950268819001353.