Three months later, group DM were divided into three groups: DGP(group D, 20), therapy of Cisapride(group X, 20) and Atropine test(group A, 20).

• 3个月后再将DM组分为DGP组(D组)、西沙必利治疗组(X组)和阿托品试验组(A组),每组各20只。