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作者于1981~1982年对菲律宾某淡水海湾沿岸的一个农村进行了一次关于乙型肝炎的社会调查,这个树居民共882人,其中744人(84%)接受了乙型肝炎的血清学检查。
The authors conducted a social survey of hepatitis B in a rural area along the coast of a freshwater Bay from 1981 to 1982 in a total of 882 inhabitants of which 744 (84%) were serologically tested for hepatitis B.