1. Department of Palliative Care and Policy, GKT Medical School, King's College London
2. Department of HIV/GU Medicine, GKT Medical School, King's College London
3. Centre for Study of Psychosocial Health and Illness, Mailman School of Public Health, Columbia University
4. Office of Science and Epidemiology, HIV/AIDS Bureau, Health Resources and Services Administration, US Department of Health and Human Services