Iwai Masae, Horimoto Eiji, Obara Mayumi, Obuchi Masatsugu, Kurata Takeshi, Kawagoshi Kumiko, Nakamura Sumika, Shimizu Hiroyuki, Yoshida Hiromu, Takizawa Takenori
Department of Virology, Toyama Institute of Health, Toyama 939-0363, Japan.
Jpn J Infect Dis. 2011;64(2):165-7.