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单词
Community intervention study
释义
Community intervention study
Encyclopedia
医学
流行病学研究的统计学设计
释
Community intervention study
社区干预研究统计学设计
以人群为基础的实验性研究。它是按随机分配的原则将符合条件的研究对象分到试验组(或不同水平的试验组)和对照组,试验组的研究对象施加一种或多种干预措施,前瞻性随访观察疾病或健康结局,评价干预措施是否有效的研究方法。
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laser interference
laser interference analysis
laser-interference stylus profilometer
laser interference technology
laser interference thermometry
laser interferometer
laser interferometer gravitational detectors
laser interferometer gravitational wave detector
Laser Interferometer Gravitational-wave Observatory
Laser Interferometer Space Antenna
laser interferometric gravitational-wave detection
laser interferometric gravity gradiometer
laser interferometry
laser interferometry measurement of low angle
laser interferometry technology
laser ionization
laser ionization mass spectrometry
laser ionization spectrum
laser ion source
laser irradiation dynamics
laser isotope separation
laserist
laserium
laser jammer
laser land leveling machine
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