1. Department of Pediatrics (S.F.A., D.M.W.), United Kingdom CB2 2QQ
2. Clinical Cancer Genetics and Human Cancer Genetics Programs, Ohio State University Comprehensive Cancer Center (D.J.M., C.E.), Columbus, Ohio 43210
3. Charles A. Dana Human Cancer Genetics Unit, Dana-Farber Cancer Institute, Harvard Medical School (D.J.M., C.E.), Boston, Massachusetts 02115
4. Cytogenetics Laboratory, Departments of Pathology and Obstetrics, Brigham and Women’s Hospital and Harvard Medical School (S.W., C.C.M.), Boston, Massachusetts 02115
5. Cancer Research Campaign Human Cancer Genetics Research Group (C.E.), University of Cambridge, Cambridge, United Kingdom CB2 2QQ