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\bibitem{Verbueken_etal1992} {\textquotedblleft}\textit{Laser microprobe mass spectrometric identification of cyclosporine-induced intrarenal microliths in rat}{\textquotedblright}. Verbueken AH, Van Grieken RE, Verpooten GA, de Broe ME, Wedeen RP, Biological mass spectrometry \textbf{21}, 590 (1992).   http://doi.org/10.1002/BMS.1200211111

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