In addition, the similar BPs of morphogenesis of a branching epithelium (GO:0060562_epithelial tube morphogenesis ranked 6, GO:0001763_morphogenesis of a branching structure ranked 22 and GO:0048754_branching morphogenesis of an epithelial tube ranked 25) are also in the specific eMN list, which further indicates that the BP of morphogenesis of a branching epithelium structure is important for T2D-DRD2 connections. The gene discussed is DRD2; the disease is type 2 diabetes mellitus.