With its specified contents and interrelationship with demographic and social factors, reproductive health has a unique position in social science research.

生育健康因其特定的内涵，及其与人口、社会等因素的相互影响作用，在社会科学研究中具有特定的地位。

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Case study method is one of the conventional methods in social science for analyzing complex social system, and it has strong applicability to research of health policy process.

个案研究是社会科学中常见的研究复杂社会系统的方法之一，对于研究卫生政策过程有着很强的适用性。

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While there is no universally accepted minimum response rate for publication of surveys in social science and health research, the American Association for Public Opinion Research asked journals about this issue and found that 60-80% response range is acceptable, while one journal said that below 20% is just too low.

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