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Xu JJ, Bao N, Xia XH, Peng Y, Chen HY.Xu JJ, et al. Among authors: xia xh.Anal Chem. 2004 Dec 1;76(23):6902-7. doi: 10.1021/ac0490595.Anal Chem. 2004.PMID: 15571339
Song YY, Li Y, Yang C, Xia XH.Song YY, et al. Among authors: xia xh.Anal Bioanal Chem. 2008 Jan;390(1):333-41. doi: 10.1007/s00216-007-1666-4. Epub 2007 Oct 23.Anal Bioanal Chem. 2008.PMID: 17955215