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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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harmonic congruence of normals
harmonic conjugate
harmonic conjugate function
harmonic conjugate lines
harmonic conjugate planes
harmonic conjugate points
harmonic constant
harmonic continuation
harmonic coordinate
harmonic coordinates
harmonic coordinate system
harmonic cross ratio
harmonic cubic
harmonic current disturbance caused by traction system
harmonic curve
harmonic curve plotting
harmonic decline
harmonic decomposition
harmonic differential
harmonic differential equation
harmonic dimension
harmonic distortion
harmonic division
harmonic divisor number
harmonic energy meter
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