Research Report
Copyright ©2014 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 21, 2014; 20(15): 4377-4381
Published online Apr 21, 2014. doi: 10.3748/wjg.v20.i15.4377
Figure 1
Figure 1 Primary malignancy origin. ENT: Ear, nose and throat.