方法：对广西北流市民乐镇居民进行卫生服务家庭健康询问调查。

Methods: Residents in the rural areas of Beiliu were interviewed at their home with questionnaires.

youdao

方法：对广西北流市民乐镇居民进行卫生服务家庭健康询问调查。

Methods: Residents in the rural areas of Beiliu were interviewed at their home with questionnaires.

youdao