Ma, R; Mann, F; Wang, J; Lloyd-Evans, B; Terhune, J; Al-Shihabi, A; Johnson, S; (2019) The effectiveness of interventions for reducing subjective and objective social isolation among people with mental health problems: a systematic review. Social Psychiatry and Psychiatric Epidemiology 10.1007/s00127-019-01800-z. (In press). Green open access