Table 1 Patterns of K‐ras mutation in gastric intestinal metaplasia.

	Helicobacter pylori eradication
	Before	n	After	n
Group A	AGT (Ser)	9	AGT (Ser)	4
	GAT (Asp)	6	GAT (Asp)	1
	TGT (Cys)	3
Group B1	AGT (Ser)	1	GAT (Asp)	1
Cancer areas	GCT (Ala)	1
	GTT (Val)	1