NIH:10.3748/wjg.14.2810 NIH:10.3748/wjg.14.3165 NIH:10.3748/wjg.v16.i10.1226 NIH:10.3748/wjg.v16.i11.1304 NIH:10.3748/wjg.v17.i9.1152 NIH:10.3748/wjg.v17.i20.2500 NIH:10.3748/wjg.v18.i31.4086 NIH:10.3748/wjg.v18.i32.4323 NIH:10.3748/wjg.v18.i39.5495 NIH:10.3748/wjg.v19.i24.3726 NIH:10.3748/wjg.v19.i35.5943 NIH:10.3748/wjg.v19.i44.8028 NIH:10.3748/wjg.v20.i31.10969 NIH:10.3748/wjg.v20.i32.11023 NIH:10.3748/wjg.v20.i36.13027 NIH:10.3748/wjg.v20.i40.14717 NIH:10.3748/wjg.v21.i1.155 NIH:10.3748/wjg.v21.i17.5119 NIH:10.3748/wjg.v22.i46.10158