retrospective studies meaning in Chinese

回顾法
回顾性研究

A retrospective study of nosocomial infections in tumor hospital
2003年医院感染状况调查
Retrospective study on pneumoconiosis in a nonferrous metal company
2003年间尘肺病发病状况分析
Retrospective study on the filariasis elimination work in feixian county
费县消灭丝虫病工作回顾
Retrospective study on 21 elderly patients with spinal tuberculosis
老年人脊柱结核21例回顾性分析
A retrospective study on the forensic psychiatric expertise
司法精神医学鉴定无精神病74例案例分析及随访

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