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Xiang Z, Tang A, Ren Y, Zhou Q, Luo X. Simultaneous determination of serum tryptophan metabolites in patients with systemic lupus erythematosus by high performance liquid chromatography with fluorescence detection. Clinical Chemistry and Laboratory Medicine. 2010 Mar 01;48(4):513–7. doi: 10.1515/cclm.2010.105. |