Method: Case retrospective analysis was conducted in 1020 drug abusers who were treated in Ankang hospital during 1992 to 1998.
方法：本文对1992年-1998年天津市安康医院收治的1020例脱毒治疗者的病史资料进行了文档分析调查。
Method: 160 case of ACS in emergency department were studied by retrospective analysis.
方法：回顾性分析160例ACS患者在急诊救治过程中的护理体会。
Methods a retrospective analysis of clinical and pathologic material was made about 99 case of ovarian cyst torsion proved by operation.
方法对99例术后证实为卵巢囊肿蒂扭转患者的临床与病理资料进行回顾性分析。
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