eight provinces case study
Evidence-based case study
Numerical simulation and case study
Statistic and case study
Typical ore earthquake case study
case control study
病例对照研究
病例-对照研究
病例—对照研究
案例对照研究
个案对照研究法
病例-对照
病历对照实验
病例对照调查
对照研究
问卷调查
case family-control family study