The study took a sample survey and focus group interviews combination of empirical research.

本课题采取抽样调查和焦点小组访谈相结合的方法进行实证研究。

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Methods: Field survey, experts counseling and focus group interviews were employed to collect data and calculate standard cost of diagnosis of Down's Syndrome.

方法：采用现场调查、专家咨询、专题组座谈和个人深入访谈，对唐氏综合征产前诊断项目的标准成本进行测算。

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Data source: Focus group discussions, in-depth interviews, Participatory method, questionnaires, observations of surroundings, and collected documents.

资料来源：专题小组讨论、个人深入访谈、参与性方法、问卷、观察当地和居民的物质环境、现有资料。

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Methodologies: Questionnaire investigation on community health institutes and health workers, focus group discussion by health technical workers, and directors individual in -depth interviews.

方法：社区卫生服务机构与人员的问卷调查、卫生人员专题小组讨论、机构领导深入访谈。

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Methodologies: Questionnaire investigation on community health institutes and health workers, focus group discussion by health technical workers, and directors individual in -depth interviews.

方法：社区卫生服务机构与人员的问卷调查、卫生人员专题小组讨论、机构领导深入访谈。

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