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Chen WY, Wang LS, Chiu HT, Chen YC, Lee CY.Chen WY, et al. Among authors: chen yc.J Am Soc Mass Spectrom. 2004 Nov;15(11):1629-35. doi: 10.1016/j.jasms.2004.08.001.J Am Soc Mass Spectrom. 2004.PMID: 15519230Free article.