Authors: Narikazu Boku, Seiichiro Yamamoto, Haruhiko Fukuda, Kuniaki Shirao, Toshihiko Doi, Akira Sawaki, Wasaburo Koizumi, Hiroshi Saito, Kensei Yamaguchi, Hiroya Takiuchi, Junichiro Nasu, Atsushi Ohtsu - The Lancet 2009 cited by 592