Nakano Yoko, Yamauchi Akinori, Yano Takuya, Nakayama Osamu, Sakai Haruko, Nagasaka Yuji, Itaba Seiji, Tabata Yoshiki, Sugiyama Akira
Mie Prefectural Institute of Public Health and Envionmental Sciences, Yokkaichi, Japan.
Jpn J Infect Dis. 2006 Apr;59(2):136-8.