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Cui Z, Willingham MC, Hicks AM, Alexander-Miller MA, Howard TD, Hawkins GA, Miller MS, Weir HM, Du W, DeLong CJ.Cui Z, et al. Among authors: hawkins ga.Proc Natl Acad Sci U S A. 2003 May 27;100(11):6682-7. doi: 10.1073/pnas.1031601100. Epub 2003 Apr 30.Proc Natl Acad Sci U S A. 2003.PMID: 12724523Free PMC article.