Epidemiological analysis of respiratory and intestinal infectious diseases in three counties of Sichuan: the baseline survey of Disaster Mitigation Demonstration Area in western Ch... oleh Zhiqiang Xue, Zhenbo Yang, Hui Sun, Jinghuan Ren, Mengzi Sun, Jiagen Li, Anning Zhang, Pingping Zheng, Pan Pan, Jing Dou, Li Shen, Yang Chen, Kexin Li, Tianyu Feng, Yaogai Lv, Chunli Bi, Lina Jin, Zhe Wang, Yan Yao