WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 6,2010, Pages 755-763, doi:10.3748/wjg.v16.i6.755
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 6,2010, Pages 740-744, doi:10.3748/wjg.v16.i6.745
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 6,2010, Pages 745-748, doi:10.3748/wjg.v16.i6.740
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 6,2010, Pages 673-682, doi:10.3748/wjg.v16.i6.673
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 16, Issue 6,2010, Pages 764-769, doi:10.3748/wjg.v16.i6.764