Influencing factors of persistent SARS⁃CoV⁃2 antibody positive test results in patients with COVID⁃19
LI Tongzeng, LIANG Lianchun.
The Journal of Practical Medicine . 2021, (8): 970 -973 .  DOI: 10.3969/j.issn.1006⁃5725.2021.08.002