METHODS: We conducted a multicenter, randomized, double - blind, parallel - treatment, placebo - controlled study in Japan.

方法：在日本进行一项多中心随机双盲对比治疗的安慰剂对照研究。

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METHODS: We conducted a multicenter, randomized, double-blind, parallel-treatment, placebo-controlled study in Japan.

方法：在日本进行一项多中心随机双盲对比治疗的安慰剂对照研究。

youdao

Methods The test was randomized, double-blind, parallel study.

方法本试验为随机双盲对照研究。

youdao