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Köppen A, Klein J, Erb C, Löffelholz K.Köppen A, et al. Among authors: klein j.J Pharmacol Exp Ther. 1997 Sep;282(3):1139-45.J Pharmacol Exp Ther. 1997.PMID: 9316819
Hilgert M, Hartmann J, Löffelholz K, Jeltsch H, Cassel JC, Klein J.Hilgert M, et al. Among authors: klein j.Neurochem Res. 2003 Apr;28(3-4):467-72. doi: 10.1023/a:1022852819018.Neurochem Res. 2003.PMID: 12675132
Hartmann J, Erb C, Ebert U, Baumann KH, Popp A, König G, Klein J.Hartmann J, et al. Among authors: klein j.Neuroscience. 2004;125(4):1009-17. doi: 10.1016/j.neuroscience.2004.02.038.Neuroscience. 2004.PMID: 15120860
Kiewert C, Buchholzer ML, Hartmann J, Chatterjee SS, Klein J.Kiewert C, et al. Among authors: klein j.Neurosci Lett. 2004 Jul 8;364(3):195-8. doi: 10.1016/j.neulet.2004.04.046.Neurosci Lett. 2004.PMID: 15196674
Walter A, Korth U, Hilgert M, Hartmann J, Weichel O, Hilgert M, Fassbender K, Schmitt A, Klein J.Walter A, et al. Among authors: klein j.Neurobiol Aging. 2004 Nov-Dec;25(10):1299-303. doi: 10.1016/j.neurobiolaging.2004.02.016.Neurobiol Aging. 2004.PMID: 15465626Clinical Trial.
Kiewert C, Hartmann J, Stoll J, Thekkumkara TJ, Van der Schyf CJ, Klein J.Kiewert C, et al. Among authors: klein j.Neurochem Res. 2006 Mar;31(3):395-9. doi: 10.1007/s11064-005-9036-0.Neurochem Res. 2006.PMID: 16733815
Kumar V, Mdzinarishvili A, Kiewert C, Abbruscato T, Bickel U, van der Schyf CJ, Klein J.Kumar V, et al. Among authors: klein j.J Pharmacol Sci. 2006 Sep;102(1):47-54. doi: 10.1254/jphs.fp0060378. Epub 2006 Aug 26.J Pharmacol Sci. 2006.PMID: 16936454Free article.
Kiewert C, Kumar V, Hildmann O, Rueda M, Hartmann J, Naik RS, Klein J.Kiewert C, et al. Among authors: klein j.Brain Res. 2007 Jan 12;1128(1):70-8. doi: 10.1016/j.brainres.2006.10.042. Epub 2006 Nov 28.Brain Res. 2007.PMID: 17134681Free PMC article.