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Steptoe A, Strike PC, Perkins-Porras L, McEwan JR, Whitehead DL.Steptoe A, et al. Among authors: mcewan jr.Biol Psychiatry. 2006 Oct 15;60(8):837-42. doi: 10.1016/j.biopsych.2006.03.041. Epub 2006 Jun 14.Biol Psychiatry. 2006.PMID: 16780810