我们对山东省莱阳市 1988～ 1989两年的肝硬变死亡者的家系进行了调查 ,结果报告如下。资料与方法一、资料来源。指示病例来源于莱阳市殡仪馆。医生根据指示病例逐村逐户调查核实 ,填写调查表 ,排除其他疾病 ,以县以上医院诊断为准。凡三级亲属 15岁及以上者均在调查范围之内 , We investigated the ancestry of cirrhosis patients from 1988 to 1989 in Laiyang City, Shandong Province. The results are reported below. Data and Methods 1. Sources of Information. The indicated cases were from the funeral home in Laiyang City. According to the instructions, the doctors investigated and verified the case-by-villager case by house, filled out the questionnaire, and excluded other diseases. The diagnosis of the hospital at or above the county level prevailed. All third-degree relatives aged 15 and above are within the scope of the investigation.