中国热带医学
应用圆形分布法分析小儿支气管肺炎住院的季节性分布特征
张秋敏,林凯平,陈洁,凌巧,黄云燕
Analysis of features of seasonal distribution of infant bronchal pneumonia by round distribution methods .
中国热带医学 . 2007, (07): 1207 -1208 .