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Butler AA, Cone RD.Butler AA, et al. Among authors: cone rd.Ann N Y Acad Sci. 2003 Jun;994:240-5. doi: 10.1111/j.1749-6632.2003.tb03186.x.Ann N Y Acad Sci. 2003.PMID: 12851322
Butler AA, Marks DL, Fan W, Kuhn CM, Bartolome M, Cone RD.Butler AA, et al. Among authors: cone rd.Nat Neurosci. 2001 Jun;4(6):605-11. doi: 10.1038/88423.Nat Neurosci. 2001.PMID: 11369941