Randomized controlled trials carry more weight.
随机对照试验更有信服力。
Method: Use the method of randomized controlled trials.
方法：采用随机对照试验的方法。
Study Design. A systematic review of randomized controlled trials.
研究设计：随机对照试验的系统评价。
Study Design. A systematic review of randomized controlled trials.
研究设计：随机对照试验的系统评价。
应用推荐