Study Design. A simple blind, random controlled clinical trial.
研究目的：单盲，随机对照临床试验。
Methods The random clinical study with double blind was used.
方法采取随机双盲对照临床研究。
Methods The random and double blind method was used.
方法采用随机双盲方法。
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: Random, double blind and double central prospective study was adopted.
方法：采用随机、双盲、双中心前瞻性研究。
Method: Adopt the random single blind prospective method in clinic research.
方法：采用随机、单盲、前瞻性的临床研究方法。
Objective To apply blind for the results of a minimization random allocation system on Internet.
目的对基于网络的最小化随机化分组系统的分组结果设盲。
METHODS: The double blind and random method was used.
方法：随机双盲双模拟对照试验。
METHODS: The double blind and random method was used.
方法：随机双盲双模拟对照试验。
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