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病例-对照研究
释义
病例-对照研究
Encyclopedia
理学
临床试验的自适应性设计
释
case-control study
病例-对照研究
比较一组患某病的病人(病例组)和一组未患此种病的人(对照组),过去暴露于某种或几种可疑病因因素的差异的一种流行病学调查的方法。又称回顾性研究。
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surface polariton
surface polaron
surface potential
surface potential particle size analyzer
surface pressure
surface processing in vacuum
surface properties of polymers
surface quality evaluation
surface quality of machining
surface quenching by flame heat
surface quenching by induction heat
surface radiation sources
surface radiative properties
surface reactance
surface reaction mechanism
surface recombination
surface reconstructing promoter
surface reconstruction
surface reflectance
surface reflectance spectroscopy
surface reflection model
surface region
surface relaxation
surface relaxation and reconstruction of minerals
surface rendering
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