Ritsu Sakata,^1,* Dale L. Preston,² Alina V. Brenner,¹ Hiromi Sugiyama,¹ Eric J. Grant,³ Preetha Rajaraman,⁴ Atsuko Sadakane,¹ Mai Utada,¹ Benjamin French,⁵ Elizabeth K. Cahoon,⁴ Kiyohiko Mabuchi,⁴ Kotaro Ozasa<sup>1

1</sup>a Departments of Epidemiology
²d Departments of Hirosoft International Corporation, Eureka, California
³c Departments of Associate Chief of Research, Radiation Effects Research Foundation, Hiroshima, Japa
⁴e Departments of Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Natio
⁵b Departments of Statistics

^* Address for correspondence: Department of Epidemiology, Radiation Effects Research Foundation, 5-2 Hijiyama Park, Mina-mi-ku, Hiroshima 7320815, Japan; Email: sakata@rerf.or.jp.