Toda Shoichi, Okamoto Reiko, Nishida Tomoko, Nakao Toshiki, Yoshikawa Masatoshi, Suzuki Eitaro, Miyamura Shigenori
Division of Biology, Yamaguchi Prefectural Research Institute of Public Health, Yamaguchi 753-0821, Japan.
Jpn J Infect Dis. 2006 Apr;59(2):142-3.