Brief Article
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 28, 2013; 19(32): 5302-5308
Published online Aug 28, 2013. doi: 10.3748/wjg.v19.i32.5302
Figure 1
Figure 1 Kaplan-Meier curves. A: Overall survival, P-value by log-rank test < 0.001; B: Disease free survival in patients with elevated serum carbohydrate antigen 19-9 (CA 19-9) levels (n = 163) and those with normal serum CA 19-9 levels (n = 325), P-value by log-rank test = 0.099.