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Kaufman MJ, Levin JM, Ross MH, Lange N, Rose SL, Kukes TJ, Mendelson JH, Lukas SE, Cohen BM, Renshaw PF.Kaufman MJ, et al.JAMA. 1998 Feb 4;279(5):376-80.JAMA. 1998.PMID: 9459471Clinical Trial.