Riggs W
Radiology. 1976 Aug;120(2):451. doi: 10.1148/120.2.451.
A questionaire regarding the incidence of hiatal hernia in infacts and children was sent to the 50 largest departments of pediatric radiology in the United States and Canada. The 36 returned revealed that the larger departments see an average of 3.2 hiatal hernias per year or about 0.62 per cent of their upper gastrointestinal studies.
一份关于婴儿和儿童食管裂孔疝发病率的调查问卷被发送给了美国和加拿大50个最大的儿科放射科。回收的36份问卷显示,规模较大的科室平均每年发现3.2例食管裂孔疝,约占其上部胃肠道检查病例的0.62%。