Retrospective Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Aug 16, 2021; 9(23): 6734-6746
Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6734
Figure 1
Figure 1 Kaplan-Meier survival by cost of living index. A: 2007-2015; B: 2007-2009; C: 2010-2012; D: 2013-2015. COLI: Cost of living index.