1. University of Oxford; Department of Public Health; Rosemary Rue Building Old Road Campus Headington Oxford UK OX3 7LF
2. Pontificia Universidad Javeriana; Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine; Cr. 7 #40-62, 2nd floor Bogota DC Colombia
3. St Mary's Hospital; 1st Floor Main Outpatients; Milton Road Portsmouth UK PO3 6AD
4. Oxford Brookes University; Department of Social Work and Public Health; Marston Road, Jack Straws Lane Marston Oxford England UK OX3 0FL