World Chinese Journal of Digestology, Volume 27, Issue 20,2019, Pages 1271-1277, doi:10.11569/wcjd.v27.i20.1271
World Chinese Journal of Digestology, Volume 27, Issue 20,2019, Pages 1278-1284, doi:10.11569/wcjd.v27.i20.1278
World Chinese Journal of Digestology, Volume 27, Issue 20,2019, Pages 1256-1262, doi:10.11569/wcjd.v27.i20.1256
World Chinese Journal of Digestology, Volume 27, Issue 20,2019, Pages 1248-1255, doi:10.11569/wcjd.v27.i20.1248
World Chinese Journal of Digestology, Volume 27, Issue 20,2019, Pages 1285-1289, doi:10.11569/wcjd.v27.i20.1285