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Barraco RA, Martens KA, Parizon M, Normile HJ.Barraco RA, et al.Brain Res Bull. 1993;31(3-4):397-404. doi: 10.1016/0361-9230(93)90233-2.Brain Res Bull. 1993.PMID: 8490738
Barraco RA, Janusz CJ, Polasek PM, Parizon M, Roberts PA.Barraco RA, et al.Brain Res Bull. 1988 Jan;20(1):129-32. doi: 10.1016/0361-9230(88)90016-0.Brain Res Bull. 1988.PMID: 3342338
Barraco R, el-Ridi M, Ergene E, Parizon M, Bradley D.Barraco R, et al.Brain Res Bull. 1992 Dec;29(6):703-65. doi: 10.1016/0361-9230(92)90143-l.Brain Res Bull. 1992.PMID: 1473009