Risk factors and prognosis of the in-hospital death of aged patients with acute exacerbation of chronic obstructive pulmonary disease

SUN Ai-hua, ZHAO Yan-qiu, WANG Ji-ling

Basic & Clinical Medicine . 2022, (9): 1414 -1418 . DOI: 10.16352/j.issn.1001-6325.2022.09.1414