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Davidson JR, Abraham K, Connor KM, McLeod MN.Davidson JR, et al. Among authors: mcleod mn.Biol Psychiatry. 2003 Feb 1;53(3):261-4. doi: 10.1016/s0006-3223(02)01500-7.Biol Psychiatry. 2003.PMID: 12559660Clinical Trial.