Whereas some of the low self-control study members are more likely to be single parents with a very low income and the parent is in poor health and likely to be a heavy substance abuser.
然而，一些自我控制能力低的研究对象更有可能是收入非常低的单亲父母，父母的健康状况很差，很可能是重度药物滥用者。
Methods: A nested case-control study.
方法：采用成组病例对照研究。
Methods: Prospective, double-blind control study.
方法：前瞻性、双盲对照研究。
Methods The randomized control study was performed.
方法采用同期非随机对照试验。
A case control study nested in cohort was conducted.
本文进行了一项队列内病例对照研究。
Neural tube defects; Case control study; Risk factors.
神经管畸形；病例对照研究；危险因素。
Methods 1: m matched case-control study was conducted.
方法采取1：M匹配的病例对照研究。
Methods a community based case control study was designed.
方法以社区为基础的病例对照研究。
Methods Cross-sectional study and case-control study were performed.
方法现况调查和病例对照研究。
DESIGN: Prospective case control study based on experimental animals.
设计：以实验动物为研究对象，前瞻性、对照研究。
Methods A random, double blind, and placebo control study was conducted.
方法采用随机双盲、安慰剂平行对照研究。
Study Design. Prospectie case-control study testing a new diagnostic method.
研究设计：为试验一种新的诊断方法而做的预期病例对照研究。
Methods Prevalence survey and case-control study on risk factors was conducted.
方法采用现况调查和危险因素病例对照研究法进行研究。
Inverted-pendulum is an ideal experimental object in intelligent control study.
倒立摆是智能控制的理想实验对象。
A Case-control Study of Gastric Cancer and Nutritional Factors in Marseille, France.
病例对照研究胃癌和营养因素，在马赛，法国。
Method This study was underwent with the clinical case-control study of the Epidemiology.
方法采用临床流行病学病例对照研究方法进行研究。
Methods Case control study and self-control study in Chinese herbal treatment group were conducted.
方法采用病例对照研究和中药治疗组自身前后对照研究。
Methods Case control study of 544 high risk persons and 448 controls from Beijing, Nanjing, Changchun.
方法来自北京、南京、长春544名性滥者和448名对照进行病例对照研究。
Relationship between electromagnetic field exposure and dementia: a population-based case-control study.
电磁场暴露与痴呆：基于人群的病例对照研究。
The conclusion can provide the evidence for the in-process cutting control study using vibration signals.
文章的结论可为利用振动信号进行切削在线控制的研究提供依据。
Purpose To explore the risk factors of hepatocellular carcinoma (HCC) with the aid of nested case control study.
目的应用巢式病例对照研究方法，探讨原发性肝癌（HCC）的危险因素。
Methods a 1:1 matched case-control study was conducted 175 patients with gastric cancer and 175 controls were surveyed by questionnaire.
方法采用1：1配对的病例对照研究，对175对病例及对照进行饮食及生活行为问卷调查。
Dongguashan Copper Mine is the first rockburst-prone deep-seated metal ore deposit in China where rockburst control study has been performed.
冬瓜山铜矿是我国开采的首家有岩爆倾向的深埋硬岩金属矿山，对此开展了岩爆控制研究。
Methods A 1:1 matched case-control study was performed exposure to analyse some exposure factors in home environment that related with asthma.
方法应用1∶1配对的病例对照研究方法，调查和分析家庭环境中与儿童哮喘有关的暴露因素。
A matched case-control study on the relationships between cigarette smoking, alcohol drinking, hypertension and cerebral hemorrhage was conducted.
采用以医院为基础的配比病例对照研究方法，探讨了吸烟、饮酒及高血压与脑出血的关系。
METHOD Adopt case - control and history case - control study, divided delivery women into responsibility midwifery group and traditional midwifery group.
方法采用同期对照和历史对照研究的方法，将产妇分为责任制助产组和传统助产组。
The standard materials for the quality control of biochemical drugs are important, and also the hotspot and the emphasis in current pharmaceutical quality control study.
生化药品标准物质是其质量控制体系的重要组成部分，也是当前药品质控研究的热点和重点之一。
Therefore, in order to improve the efficiency of cost control and achieve the cost control effect, we should pay attention to the cost control study in the product design stage.
所以，为了提高成本控制效率，达到成本控制效果，我们应该注重产品设计阶段的成本控制研究。
Objective: Control study by polycystic ovary syndrome (PCOS) patients with clinical manifestations, and endocrine changes, so as to provide effective treatment of PCOS patients.
目的：通过对照研究，探讨多囊卵巢综合征(PCOS)患者的临床表现，及其内分泌变化，从而为PCOS患者提供有效的治疗。
DESIGN: Randomized case control study to patients based on diagnosis SETTING: department of general diseases, rehabilitation room and ultrasound department of a university hospital.
设计：以患者为研究对象，以诊断为依据的随机对照研究。单位：一所大学医院的综合科、康复室及超声波室联合进行的课题研究。
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