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Higgins M, Kannel W, Garrison R, Pinsky J, Stokes J 3rd.Higgins M, et al.Acta Med Scand Suppl. 1988;723:23-36. doi: 10.1111/j.0954-6820.1987.tb05925.x.Acta Med Scand Suppl. 1988.PMID: 3164971