方法采用随机平行对照研究。
Methods We employed the randomly contrast study at parallel level.
方法采用随机双盲、安慰剂平行对照研究。
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。
Methods: A randomized and double-blind controlled clinical trial was conducted for smoking cessation.
方法用随机化、双盲、双模拟、多中心、阳性药平行对照研究方法。
Methods This is a randomized, double blind, double-dummy, multi-center, parallel positive controlled clinical study.
长期肠内营养对克罗恩病临床或内镜切除术后复发的影响：前瞻性，非随机，平行对照研究。
Impact of long-term enteral nutrition on clinical and endoscopic recurrence after resection for Crohn's disease: a prospective, non-randomized, parallel, controlled study.
方法：采用双盲双模拟、随机、平行对照研究，以地西泮为对照药。完成4周治疗的患者共48例。
METHODS:A double blind, double modeling, randomized and paralleled control study was performed in 48 patients with anxiety disorders for 4 weeks, and diazepam was used as the control drugs.
研究按照准实验来设计，采用两个高中一年级的自然、平行班级作为研究对象，一个实验班，一个对照班。
The study was designed as a quasi-experiment, taking two natural classes of the first graders in a senior high school as the subjects, experimental class and control class.
方法本研究采用随机、双盲、平行对照的临床研究方法。
Methods A randomized double-blind parallel controlled clinical trial was conducted.
方法：采用平行双盲随机对照研究。
METHODS: The parallel double blind randomized control clinical trial was used.
方法采用前瞻性，随机双盲双模拟，阳性药平行对照，多中心临床研究。
Methods The multicentre prospective, random, double-blind and imitation, positive-drug parallel control clinical trails are used.
方法本研究为随机双盲、平行对照、多中心实验设计，符合研究方案、需要肠外营养的住院病人161例进入本研究。
Methods It is a randomized double-blind parallel controlled multiple-centered clinical study design. The inpatients 161 cases who accorded program and needed parental nutrition enter this study.
方法：采用随机、双盲、安慰剂平行组对照、剂量反应研究设计和优效性检验。
METHODS: Cortex fraxini total coumarin was involved in a randomized, double-blind, placebo parallel control, dosage-reaction design and superiority test.
材料和方法：这是一项随机、对照、双盲、平行分组、多中心的研究。
MATERIALS and METHODS: This was a randomized, double-blind, placebo controlled, parallel group, multicenter study.
方法 采用前瞻性、多中心、随机、双盲和平行对照临床研究的亚组分析。
Methods Subgroup analysis of a perspective multicenter randomized double blind and parallel control study was performed.
所有研究均为随机、空白- 对照、双盲的平行设计试验。
All the sub-studies were randomized, placebo-controlled, double-blind and had a parallel-group design.
所有研究均为随机、空白- 对照、双盲的平行设计试验。
All the sub-studies were randomized, placebo-controlled, double-blind and had a parallel-group design.
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