1. Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
2. KP Cantor Environmental LLC, Silver Spring, Maryland, USA
3. Centre for Research in Environmental Epidemiology, Barcelona, Spain
4. Institut Municipal d’Investigacio Medica–Hospital del Mar, Barcelona, Spain
5. CIBER Epidemiologia y Salud Publica, Barcelona, Spain
6. Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
7. Universidad Pompeu Fabra, Barcelona, Spain
8. Universidad de Oviedo, Oviedo, Spain
9. Unidad de Invesigación, Hospital Universitario de Canarias, La Laguna, Spain
10. Consorci Hospitalari Parc Tauli, Sabadell, Spain
11. Ramon y Cajal University Hospital, Madrid, Spain
12. National School of Public Health, Athens, Greece