1. Department of Biosciences at Novum (K.H.), Karolinska Institute, 141 57 Huddinge, Sweden
2. Clinical Cancer Genetics Program (C.E.), Human Cancer Genetics Program, Comprehensive Cancer Center, Division of Human Genetics, Department of Internal Medicine, The Ohio State University, Columbus, Ohio 43210
3. Division of Molecular Genetic Epidemiology (K.H., B.C.), German Cancer Research Center, 69120 Heidelberg, Germany