Correlation of liver cirrhosis and primary liver cancer in Japanese rural area.
D003625:Data Collection; D006801:Humans; D007564:Japan; D008103:Liver Cirrhosis / Q000453:epidemiology* / Q000517:prevention & control; D008113:Liver Neoplasms / Q000453:epidemiology* / Q000517:prevention & control; D011159:Population Surveillance; D012423:Rural Health; D013223:Statistics as Topic