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Zhao Q, Li X, Fang X, Stanton B, Zhao G, Zhao J, Zhang L.Zhao Q, et al. Among authors: li x.J Assoc Nurses AIDS Care. 2009 Mar-Apr;20(2):122-32. doi: 10.1016/j.jana.2008.09.009.J Assoc Nurses AIDS Care. 2009.PMID: 19286124Free PMC article.
Fang X, Li X, Stanton B, Dong Q.Fang X, et al. Among authors: li x.Am J Health Behav. 2003 May-Jun;27(3):257-67. doi: 10.5993/ajhb.27.3.7.Am J Health Behav. 2003.PMID: 12751622
Zhang H, Stanton B, Li X, Mao R, Sun Z, Kaljee L, Clemens M, Ravendhran S, Qu M.Zhang H, et al. Among authors: li x.AIDS Behav. 2004 Jun;8(2):105-17. doi: 10.1023/B:AIBE.0000030242.46843.71.AIDS Behav. 2004.PMID: 15187473