1 UCL Research Department of Epidemiology and Public Health Rm356a, 1-19 Torrington Place, London WC1E 7HB, UK.
2 Institute for Diabetes and Regeneration Research, Helmholtz Center Munich, Business Campus Garching, Parkring 11, 85748 Garching, Germany.
3 Department of Oncology-Pathology, Karolinska Institutet, 171 77 Stockholm, Sweden.
4 Academic Unit of Ophthalmology, School of Immunity and Infection, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
5 Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, 05508-000 São Paulo, SP, Brazil.