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[Risk factors for asthma in children in Hefei, China].
Xiong M, Ni C, Pan JH, Wang Q, Zheng LL. Xiong M, et al. Zhongguo Dang Dai Er Ke Za Zhi. 2013 May;15(5):364-7. Zhongguo Dang Dai Er Ke Za Zhi. 2013. PMID: 23676939 Free article. Chinese.