To evaluate the efficacy of using feather bedding in the control of asthma symptoms.

评估使用羽绒寝具对控制气喘症状的疗效。

youdao

To evaluate the efficacy of using feather bedding in the control of asthma symptoms.

评估使用羽绒寝具对控制气喘症状的疗效。

youdao