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Forbes G, Earnest F 4th, Jackson IT, Marsh WR, Jack CR, Cross SA.Forbes G, et al. Among authors: marsh wr.Mayo Clin Proc. 1986 Jun;61(6):427-41. doi: 10.1016/s0025-6196(12)61976-4.Mayo Clin Proc. 1986.PMID: 3012215