Case Control Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Jul 28, 2014; 20(28): 9541-9548
Published online Jul 28, 2014. doi: 10.3748/wjg.v20.i28.9541
Figure 1
Figure 1 Risk factors for ampullary adenomas and ampullary cancer.