Duodenal ulcer may appear at any age but occurs most frequently between the ages of 20 and 60 and has a peak incidence in the fourth decade of life.
Duodenal ulcer may appear at any age but occurs most frequently between the ages of 20 and 60 and has a peak incidence in the fourth decade of life.
十二指肠溃疡可发生于任何年龄，但最常见于20至60岁，其中31岁至40岁发病率最高。