Retrospective Study
Copyright ©The Author(s) 2020.
World J Clin Cases. Jan 6, 2020; 8(1): 38-45
Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.38
Figure 3
Figure 3 Position setting time and total operation time in the two groups. Each value is the mean ± SD. aP < 0.05, statistical significance was considered according to the independent-samples t-test.