Infant Mortality Attributable to Birth Defects in Singletons and Twins in Japan, 1995-2008

Yoko Imaizumi^* and Kazuo Hayakawa

Department of Health Sciences, Graduate School of Medicine, Osaka University, Suita City, Osaka, Japan

^*Corresponding Author: Yoko Imaizumi, A-1302, Kokubo 120-55, Akashi City, Hyogo Prefecture 673-0005, Japan, Tel: +81-78-928-6027 Email: