Kiyohiko Hirakawa

Update on Investigation of New Side Impact Test Procedures in Japan

Koji Mizuno, Yasuhiro Matsui, Hideki Yonezawa, 2003 .

In-depth analysis by using the new advanced and integrated traffic accident database linked to permanent disability and trauma registry data in Japan

Koshiro Ono, Kazumasa Tateishi, Kiyohiko Hirakawa, 2011 .