1. National Institute of Infectious Diseases and Infectious Diseases Control Division, Ministry of Health and Welfare. Viral gastroenteritis of children, Japan, 1993-1998. Infect Agents Surveil Report 1998; 19:1-2.
2. National Institute of Infectious Diseases and Infectious Diseases Control Division, Ministry of Health and Welfare. Viral gastroenteritis, Japan, October to December 1995. Infect Agents Surveil Report 1996; 17:21-2.