1. Queen's Campus, Durham University; School of Medicine and Health, Wolfson Research Institute; University Boulevard Thornaby Stockton-on-Tees UK TS17 6BH
2. Queen's Campus, Durham University; School of Medicine, Pharmacy and Health, Wolfson Research Institute; University Boulevard Thornaby Stockton-on-Tees UK TS17 6BH
3. Teesside University; Health and Social Care Institute; Parkside West Offices Middlesbrough UK TS1 3BA
4. Pennington Biomedical Research Center; Outpatient Research Clinic; 6400 Perkins Road 70808 USA Louisiana
5. LSHTM; Department of Health Services Research and Policy; 15-17 Tavistock Place London UK WC1E 7HT
6. Pennington Biomedical Research Center of the Louisiana State Univ. System; Clinical Trials; 6400 Perkins Road Baton Rouge USA 70808