死于慢性下呼吸道疾病的人数增加了近9,000。
Deaths from chronic lower respiratory diseases increased by nearly 9,000.
心脏病依然是美国人的头号死神，然后是癌症、慢性下呼吸道疾病、中风和意外受伤。
Heart disease remained the leading cause of death in the United States, followed by cancer, chronic lower respiratory diseases, stroke and accidental injury.
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).
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).
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).
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