<p class="MsoNormal"> 倾向性评分匹配分析新型冠状病毒肺炎危重症的影响因素

李晴

Propensity score matching analysis of risk factors of severe and critical patients with COVID⁃19

LI Qing.

实用医学杂志 . 2021, (13): 1655 -1659 . DOI: 10.3969/j.issn.1006⁃5725.2021.13.002