1. University of Modena and Reggio Emilia; Department of Diagnostic, Clinical and Public Health Medicine; Via Campi 287 Modena Italy 41125
2. University of Applied Sciences Dortmund; Social Medicine and Public Health with Focus on Gender and Diversity, Department of Applied Social Sciences; Emil-Figge-Str. 44 Dortmund Germany D-44227
3. University of California Los Angeles; Biostatistics; Fielding School of Public Health 650 Charles Young Drive South, A2-125 CHS, Box 956900 90095-6900 California USA Los Angeles
4. University of Bern; Institute of Social and Preventive Medicine; Finkelhubelweg11 Bern Switzerland 3012
5. Cancer Council Victoria; Cancer Epidemiology Centre; 615 St Kilda Rd Melbourne Australia 3004
6. Maastricht University; Complex Genetics; Maastricht Netherlands
7. Paracelsus Medical University, Klinikum Nuremberg; Department of Internal Medicine, Division of Oncology and Hematology; Prof.-Ernst-Nathan-Str. 1 Nuremberg Germany D-90419
8. University of Modena and Reggio Emilia; Italian Cochrane Centre, Department of Diagnostic, Clinical and Public Health Medicine; Via del Pozzo 71 Modena Italy 41124