目的：观察必思添改善慢性阻塞性肺疾病反复下呼吸道感染的疗效。

AIM: To observe the effects of Biostim in prevention and improvation of recurrent lower respiratory tract infection in chronic obstructive pulmonary diseases (COPD).

youdao

目的寻找一种快速准确的收集慢性阻塞性肺疾病(COPD)患者下呼吸道痰液的方法，并探讨其安全性。

Objective To evaluate the safety and effectiveness of a sputum collection method in patients with chronic obstructive pulmonary disease (COPD).

youdao

目的寻找一种快速准确的收集慢性阻塞性肺疾病(COPD)患者下呼吸道痰液的方法，并探讨其安全性。

Objective To evaluate the safety and effectiveness of a sputum collection method in patients with chronic obstructive pulmonary disease (COPD).

youdao