World Chinese Journal of Digestology, Volume 27, Issue 23,2019, Pages 1454-1459, doi:10.11569/wcjd.v27.i23.1454
World Chinese Journal of Digestology, Volume 27, Issue 23,2019, Pages 1427-1435, doi:10.11569/wcjd.v27.i23.1427
World Chinese Journal of Digestology, Volume 27, Issue 23,2019, Pages 1419-1426, doi:10.11569/wcjd.v27.i23.1419
World Chinese Journal of Digestology, Volume 27, Issue 23,2019, Pages 1446-1453, doi:10.11569/wcjd.v27.i23.1446