区域地理环境因素对宁夏泾源县儿童呼吸系统疾病的影响

李浩, 张明鑫, 汪冉

The effects of regional geographical factors on children's respiratory diseases in Jingyuan, Ningxia

LI Hao, ZHANG Mingxin, WANG Ran

图2 儿童呼吸系统疾病及区域环境因素时间序列

Fig. 2 Time series of onset of respiratory diseases in children and the regional environmental factors