Published on in Vol 14, No 1 (2012): Jan-Feb
1 National Institute of Infectious Diseases, Infectious Disease Surveillance Center, Tokyo, Japan
2 Hitotsubashi University, Tokyo, Japan
3 EM Systems Co., Ltd, Tokyo, Japan
Published on in Vol 14, No 1 (2012): Jan-Feb
1 National Institute of Infectious Diseases, Infectious Disease Surveillance Center, Tokyo, Japan
2 Hitotsubashi University, Tokyo, Japan
3 EM Systems Co., Ltd, Tokyo, Japan