Methods: Clinical data of 30 cases of left semicolon carcinoma associated with acute complete obstruction underwent one-stage resection and anastomosis were analyzed retrospectively.
方法：回顾性分析30例左半结肠癌并急性完全性梗阻一期切除吻合的临床资料。
Methods: Clinic information and related factors of 84 cases of SOM were retrospectively analyzed. And 22 cases with complete data were compared.
方法：回顾性分析84例分泌性中耳炎患儿的临床资料及其相关因素，并收集资料完整的22例做治疗前后的对比。
Methods 2002-2005, the First Affiliated Hospital of Guangzhou Medical College of pregnant women to complete school education to maternal health questionnaire data were analyzed retrospectively.
方法 对2002~2005年参加广州医学院第一附属医院孕妇学校的孕妇填写的孕产期健康教育问卷资料进行回顾分析。
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