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Tsutsumi, H.; Katagi, M.; Miki, A.; Shima, N.; Kamata, T.; Nishikawa, M.; Nakajima, K.; Tsuchihashi, H., Development of simultaneous gas chromatography-mass spectrometric and liquid chromatography-electrospray ionization mass spectrometric determination method for the new designer drugs, N-benzylpiperazine (BZP), 1-(3-trifluoromethylphenyl)piperazine (TFMPP) and their main metabolites in urine, J. Chromatogr. B, 2005, 819, 315-322. [all data]