World Chinese Journal of Digestology, Volume 25, Issue 7,2017, Pages 602-609, doi:10.11569/wcjd.v25.i7.602
World Chinese Journal of Digestology, Volume 25, Issue 7,2017, Pages 596-601, doi:10.11569/wcjd.v25.i7.596
World Chinese Journal of Digestology, Volume 25, Issue 7,2017, Pages 655-658, doi:10.11569/wcjd.v25.i7.655
World Chinese Journal of Digestology, Volume 25, Issue 7,2017, Pages 638-643, doi:10.11569/wcjd.v25.i7.638