Representatives of the industry group also said it can be challenging to design, and enroll participants for, studies testing medicines for children's colds.
该协会代表还表示，检验儿童感冒药安全性的研究设计起来有难度，招募实验对象也有难度。
Representatives of the industry group also said it can be challenging to design, and enroll participants for, studies testing medicines for children's colds.
该协会代表还表示，检验儿童感冒药安全性的研究设计起来有难度，招募实验对象也有难度。
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