A.5%~10% B.10%~15% C.15%~20% D.20%~25% E.25%~30%
A.憩室病B.癌C.缺血性結(jié)腸炎D.血管發(fā)育異常E.息肉病
A.十二指腸球部前壁或胃小彎 B.十二指腸球部后壁或胃底 C.十二指腸球部后壁或胃小彎 D.十二指腸球部前壁或胃竇部 E.十二指腸球部前壁或胃底