Affiliation: | Homerton Hospital University Trust (Mishanina); Centre for Primary Care and Public Health (Rogozinska, Khan), Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK; School of Medicine (Thatthi), University of Nairobi, Nairobi, Kenya; Barts Health NHS Trust (Uddin-Khan), London, UK; Health Economics Research Group (Meads), Brunel University, Uxbridge, UK |