<p class="MsoNormal"> Correlation between sputum cytology and prognosis in hospitalized patients with acute exacerbation of COPD

TAN Yan, PENG Yulan, ZHANG Yunhui, WANG Shenglan.

The Journal of Practical Medicine . 2021, (23): 3014 -3019 . DOI: 10.3969/j.issn.1006⁃5725.2021.23.011