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. Author manuscript; available in PMC: 2010 Apr 1.
Published in final edited form as: Pharmacol Biochem Behav. 2009 Jan 6;92(2):304–313. doi: 10.1016/j.pbb.2008.12.019

Fig. 1.

Fig. 1

Total ion chromatograms of the 1st, 30th and 58th injections illustrating that the high quality of the chromatograms did not diminish from the 1st to the 58th injection.