1. Department of Community and Family Medicine and The Norris Cotton Cancer Center; Section of Biostatistics and Epidemiology, Geisel School of Medicine at Dartmouth; Lebanon; NH
2. Division of Genome Modifications and Carcinogenesis, Infection and Cancer Program, German Cancer Research Center (DKFZ); Im Neuenheimer Feld 280; 69120; Heidelberg; Germany
3. Division of Epidemiology and Community Health; The Masonic Cancer Center, University of Minnesota; Minneapolis; MN
4. Cancer and Population Studies, Queensland Institute of Medical Research; PO Royal Brisbane Hospital; Queensland; 4029; Australia