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Ding LG, Hua W, Zhang S, Chu JM, Chen KP, Wang Y, Wang FZ, Chen X.Ding LG, et al. Among authors: chen kp, chen x.Chin Med J (Engl). 2009 Mar 20;122(6):617-21.Chin Med J (Engl). 2009.PMID: 19323922
Zhi LD, Hua W, Zhang S, Shi RF, Wang FZ, Chen X.Zhi LD, et al. Among authors: chen x.Chin Med J (Engl). 2004 Apr;117(4):516-20.Chin Med J (Engl). 2004.PMID: 15109441
Ma FS, Ma J, Chu JM, Fang PH, Wang FZ, Chen X, Zhang S.Ma FS, et al. Among authors: chen x.Chin Med J (Engl). 2004 Dec;117(12):1768-71.Chin Med J (Engl). 2004.PMID: 15603702
Niu HX, Hua W, Zhang S, Sun X, Wang FZ, Chen KP, Wang H, Chen X.Niu HX, et al. Among authors: chen kp, chen x.Chin Med J (Engl). 2006 May 20;119(10):795-800.Chin Med J (Engl). 2006.PMID: 16732980