一、研究设计(一)研究问题药物与手术治疗十二指肠溃疡的费用比较。(二)所评价的选择性方法住院手术治疗(迷走神经切断术)对比门诊药物治疗(甲腈咪胍)。(三)评论本研究所探讨的不同方法,是现行许多处理方法中的两种,所以选择这两种方法是由于使用最多,且费用较高。当时流行病学依据尚不足以比较 First, the research design (A) the problem of drugs and surgical treatment of duodenal ulcer cost comparison. (B) Evaluation of the alternative method of hospitalization for surgical treatment (vagotomy) compared to outpatient medication (Cimetidine). (III) COMMENTS The different approaches explored in this study are two of the many treatments currently in use, so the choice between these two approaches is due to the most frequent use and cost. At that time epidemiological basis is not enough to compare