Studies on mortality rates and medical behavior from liver diseases in viral hepatitis infected area. The Japanese Journal of Health and Human Ecology. 2003. 69(supple) 96-97
Epidemiological and long-term follow-up studies on hepatitis prevailed in Sashima, Japan, from 1962 to 1968"Viral hepatitis C. D and E"
Excerpta Medica(Elsevier Science Publishers) 1991