方法采用现况调查和危险因素病例对照研究法进行研究。
Methods Prevalence survey and case-control study on risk factors was conducted.
很多研究员都指责案例对照法不是展现因果关系直接有力的方法，尤其因为它受制于大量的记忆误差。
Many researchers fault case-control work as being a weak method for showing direct causality, especially because it is subject to substantial recall bias.
此外，设计者们还将每个研究对象的每种促销定价实验，与对照组实验进行对比，得出其额外的损失，然后再根据平均额外损失为五种促销定价方式排名，最终确定了最忽悠人/框人的促销方式为“复合定价法”，然后依次是“限时定价法”、“钓饵定价法”﹑“贱卖定价法”和“复杂定价法”。
The average extra loss was then used to rank the five price frames. Shoppers were worst off under drip pricing, followed by time-limited offers, baiting, sales and complex pricing.
只有小部分人支持非盲法研究没有对照或者控制组，并认为无烟烟草有助于戒烟。
There is only one small, "un-blinded" study without placebos or control subjects that advocates point to as evidence that smokeless tobacco works as a smoking cessation aid.
在系统中，以一步法和预聚法为对照，研究了半预聚法对医用热塑性聚氨酯（TPU）结构和性能影响。
Medical thermoplastic polyether urethanes(TPU) based on MDI/PTMG/BDO system were prepared by one -shot, prepolymer and semi-prepolymer processes with equivalent stoichiometries respectively.
按随机对照原则研究调补元气法的临床疗效。
Clinical effect research of RBIQ was made on random and control standard.
以HPLC -EC法对照研究恶劣心境障碍大鼠额叶单胺类神经递质的改变。
HPLC-EC was used to study the changes of monoamine transmitters in frontal lobe of rat Dysthymic disorder Model.
采用DPPH·法，以芦丁为对照品，在无水乙醇和乙醇-水介质中对厚朴酚与和厚朴酚进行了自由基清除活性的初步研究。
The free radical scavenging action of Magnolol and Honokiol in ethanol and ethanol-water, with DPPH·test comparing to rutin were studied.
采用样地调查法，对盐池县1991年以来不同时期的老封育区、新封育区和对照区进行半干旱沙地草场的植被特征及其生物量比较研究。
The vegetation features and biomass of sandy rangeland in semi-arid area of Yanchi County, Ningxia were studied by means of plot investigation methods since 1991.
此阶段的研究设计可以根据具体的研究目的，采用多种形式，包括随机盲法对照临床试验。
Various forms may be employed for the study design of this phase in accordance with the specific study purpose, including randomized controlled clinical trial.
方法：以化学方法对脉通颗粒进行质量控制和稳定性研究，并以对照法进行临床疗效观察。
Methods: Chemical Methods Maitong particles quality control and stability studies and the control method to clinical observation.
以HPLC - EC法对照研究恶劣心境障碍大鼠纹状体单胺类神经递质的改变。
HPLC-EC was used to study the changes of monoamine transmitters in striatum of rat dysthymic disorder model.
方法采用儿童气质量表家长问卷法(PTQ)对48例儿童情绪障碍(观察组)及60例健康儿童(对照组)进行气质调查研究。
Methods the temperament types were tested in 48 children with emotional disorder (observed group) and 60 normal children (control group) using the Parent temperament Questionnaire (PTQ).
方法随机双盲对照法补锌干预研究。
Methods The effects of zinc supplementation were assessed in a double-blinded randomized control design.
方法以前瞻性的随机单盲对照法进行临床研究。
MethodsA prospective randomized single-blind clinical study of the control method.
方法应用免疫组化和RT-PCR法，以正常皮肤、正常疤痕为对照，检测增殖性疤痕中vegf表达，并研究VEGF与表皮细胞增殖、血管新生的相关关系。
Methods VEGF protein secretion and VEGFmRNA expression were detected by immunohistochemistry and RT - PCR, and were compared with cell proliferation and revascularization.
研究方法本研究为前瞻性研究，采用半随机对照法。
MethodsThe research is prospective study, semi-random control trial was conducted.
采用原子发射光谱法于患者接受治疗前，测定研究组和对照组病例血清中15种微量元素水平，并分析老年性痴呆是否与血清微量元素水平具有相关性。
We measured 15 kinds of trace element by atomic emission spectrometry before the patients were treated, and analyzed the association between trace element and senile dementia.
方法：两组共60例病人纳入研究，以随机数字表法将合格的研究对象分为实验组与对照组，实验组为针刺配合语言训练治疗，对照组为单纯语言训练。
Methods 60 patients were randomly divided into a treatment group treated by acupuncture associated with language training and a control group treated by simple language training.
以常规的慢速冷冻法为对照，研究了玻璃化冷冻法保存绵羊体外受精囊胚的效果。
Then, the PGCs were froze respectively in six kinds of freezing medias under slow speed cryopreservation process and vitrification process.
方法应用SP免疫组化法对实验组与对照组进行免疫组化研究，同时应用常规染色作比较。
Methods SP immunohistochemical study was used in the experimental group and control group and the application of conventional staining was used for comparison.
论文从标记符号、复分表和体系结构三个方面对《中图法》与《美国国会图书馆分类法》进行了对比研究，并给出了两者的类号对照表。
This paper contrasts and researches Chinese Library Classification (CLC) and Library of Congress Classification (LCC) on the class notes, subdivision schemes and schedule structures.
论文从标记符号、复分表和体系结构三个方面对《中图法》与《美国国会图书馆分类法》进行了对比研究，并给出了两者的类号对照表。
This paper contrasts and researches Chinese Library Classification (CLC) and Library of Congress Classification (LCC) on the class notes, subdivision schemes and schedule structures.
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