运用统计最优反演方法对50组模拟的微波辐射资料进行了反演，并讨论了观测误差对反演精度的影响。
Using the statistically optimal inversion method 50 sets of simulation microwave radiation data are retrieved. The influence of observational error on the inversion accuracy is discussed.
方法：回顾分析404例急性脑卒中患者的病历资料，并设对照组进行比较分析。
Methods: Retrospective analysis was made on case records of 404 acute cerebral apoplexy patients and compared with the control group.
方法：分析30例阑尾穿孔并腹膜炎手术治疗患儿的临床资料，其中15例行LA为腹腔镜组，15例开腹阑尾切除术为对照组。
Methods: the clinical data of 30 cases were analyzed. 15 cases were performed laparoscopic appendectomy (la), the other 15 cases were performed open appendectomy as control.
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