SethL Welles -
Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, U.S.A
Nancy Mueller -
Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, U.S.A
Nobuyoshi Tachibana -
Second Department of Medicine, Miyazaki Medical School, Miyazaki, Japan
Eiichi Shishime -
Second Department of Medicine, Miyazaki Medical School, Miyazaki, Japan
Akihiko Okayama -
Second Department of Medicine, Miyazaki Medical School, Miyazaki, Japan
Kouichi Murai -
Second Department of Medicine, Miyazaki Medical School, Miyazaki, Japan
Kazunori Tsuda -
Second Department of Medicine, Miyazaki Medical School, Miyazaki, Japan