[1] Brighton & Sussex Med Sch, Global Hlth & Infect, Brighton, E Sussex, England
[2] Brighton & Sussex Med Sch, Ctr Dementia Studies, Brighton, E Sussex, England
[3] Univ Plymouth, Fac Hlth, Plymouth, Devon, England
[4] Brighton & Sussex Med Sch, Dept Med, Brighton, E Sussex, England
[5] Brighton & Sussex Univ Hosp NHS Trust, Brighton, E Sussex, England