The methods of Definite Daily Dosage (DDD) recommended by WHO and Drug Utilization Index(DUI) by Prof. Ghodse were employed.

• 采用WHO推荐的“限定日剂量(DDD)”的方法作为药物利用研究的测量单位；应用Ghodse教授建议的药物利用指数(DUI)为指标对病历进行分析.