Two Blind control

• 双盲对照

Two Blind control的用法和样例：

例句

1. Methods Double blind contrast study was carried out on aged people who took Naobaijin in which melatonin was the main ingredient by using Wechsler Memory Scale.
   方法采用韦氏记忆量表对服用以褪黑色素为主要成分的脑白金的老年人进行双盲对照研究。