John Cologne,^1,* Jaeyoung Kim,² Hiromi Sugiyama,³ Benjamin French,¹ Harry M. Cullings,¹ Dale L. Preston,⁴ Kiyohiko Mabuchi,⁵ Kotaro Ozasa<sup>3

1</sup>aDepartments of Statistics
²cDepartment of Preventive Medicine, College of Medicine, Keimyung University, Daegu, Korea
³bDepartments of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
⁴dHirosoft International, Eureka, California
⁵eRadiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Instit

^* Address for correspondence: Department of Statistics, Radiation Effects Research Foundation, 5-2 Hijiyama Park, Minami-ku, Hiroshima 732-0815 Japan; Email: jcologne@rerf.jp.