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Pan CB, Li JS, Huang HZ, Huang ZQ, Zhao XP, Zhang B, Yang ZH, Wang YJ.Pan CB, et al. Among authors: zhang b.Zhonghua Wai Ke Za Zhi. 2006 Jul 1;44(13):911-4.Zhonghua Wai Ke Za Zhi. 2006.PMID: 17067485Chinese.