Aoki Yoko, Mizuta Katsumi, Suto Asuka, Ikeda Tatsuya, Abiko Chieko, Yamaguchi Ichiro, Miura Kaori, Ahiko Tadayuki
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata 990-0031, Japan.
Jpn J Infect Dis. 2009 Nov;62(6):481-2.