中文摘要：

目的：探讨我国医保定点药店的增选方法。方法：收集增选地区的行政区划、道路交通、人口分布、药店分布等基础数据，运用地理信息系统软件及其功能模块，基于服务面积最大化、服务人口数最大化以及规模优先原则，按照提出方法、模拟验证、完善方法的思路设计医保定点药店的增选方法。结果：解决药店服务区域定位、药店服务人口计算及可视化表达等关键问题，即可明确特定增选条件下单个备选医保定点药店对医保定点药店服务区域和服务人口贡献的计算方法及医保定点药店的增选步骤。结论：所设计的增选方法虽存在一定局限，但具备良好的信度和效度，有一定的参考价值。

英文摘要：

OBJECTIVE： To investigate the co-opted method of designated drugstores for medical insurance in China. METHODS： The data which included the administrative divisions, road traffic, population and pharmacies＇ distribution were collected, summarized and studied in respects of proposal method, stimulation validation and improvement method, using geographic information system software and module, according to the maximum principle of service area and service population. RESULTS： The key problems, including serviced area location of drugstore, calculation and visualization expression of service object, were resolved. The calculation method of the contribution of each designated drugstore of medical insurance of serviced area and service population were verified under special co-opted condition, as well as the co-opted step of designated drugstore of medical insurance. CONCLUSIONS： Despite the existence of certain limitations, the co-opted method has good reliability and validity, which provides valuable reference.