Retrospective Cohort Study
Copyright ©The Author(s) 2023.
World J Virol. Sep 25, 2023; 12(4): 221-232
Published online Sep 25, 2023. doi: 10.5501/wjv.v12.i4.221
Figure 1
Figure 1 Two-way plot visualizing the covariate balance in our study. A: Before matching; B: After matching.