Study Design. Prospective, randomized, double-blind study.
研究设计：前瞻性、随机化、双盲研究。
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: Cortex fraxini total coumarin was involved in a randomized, double-blind, placebo parallel control, dosage-reaction design and superiority test.
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。
Research Design and Methodsrospective, randomized, double-blind study on patients with documented stable coronary artery disease and normal glucose tolerance.
研究设计和方法：对在案的糖耐量正常的冠心病患者进行前瞻性，随机，双盲的研究。
RESEARCH DESIGN and METHODS This was a double-blind, randomized, crossover trial.
研究设计与方法本研究为一项双盲、随机、交叉试验。
Methods We measured the liver size in 184 cases by sonographic and clinical method with a double-blind design at 1 ~ 3 days of life.
方法应用超声波和临床方法前瞻性、双盲、对比研究连续出生的1 ~3日龄的184例新生儿肝脏大小。
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.
所有研究均为随机、空白- 对照、双盲的平行设计试验。
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