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Helms BA, Reulen SW, Nijhuis S, de Graaf-Heuvelmans PT, Merkx M, Meijer EW.Helms BA, et al. Among authors: reulen sw.J Am Chem Soc. 2009 Aug 26;131(33):11683-5. doi: 10.1021/ja902285m.J Am Chem Soc. 2009.PMID: 19642697Free article.