This study was designed to measure the performance of county health systems in central and western China utilizing routi......

考虑积雪和降水不均等特点，对流域进行分带处理，提出了建立和包含积雪融雪结构的水文评价模型。利用该模型求得未来不同气候变化情况......

目的 通过分析不同付费方式住院患者的医疗费用与疾病构成,为有效控制医疗费用不合理增长,合理配置医疗资源提供依据,为评价医保支......