Retrospective Cohort Study
Copyright ©The Author(s) 2017.
World J Radiol. Sep 28, 2017; 9(9): 350-358
Published online Sep 28, 2017. doi: 10.4329/wjr.v9.i9.350
Figure 1
Figure 1 Flowchart showing inclusion and exclusion criteria for selection of cases for sector-based analysis.