RT Journal Article SR Electronic T1 An outbreak of hepatitis B in men who have sex with men but identify as heterosexual JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 227 OP 227 DO 10.1136/sextrans-2015-052490 VO 92 IS 3 A1 Shankar, Ananda Giri A1 Mandal, Sema A1 Ijaz, Samreen YR 2016 UL http://sti.bmj.com/content/92/3/227.abstract AB