ＩＢＤ　Ｒｅｓｅａｒｃｈ　Ｊｏｕｒｎａｌ　ｏｆ　Ｉｎｆｌａｍｍａｔｏｒｙ　Ｂｏｗｅｌ　Ｄｉｓｅａｓｅ　Ｒｅｓｅａｒｃｈ　ｖｏｌ．１５ｎｏ．４（２０２１