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Benson LN, Hamilton F, Dasmahapatra H, Rabinowitch M, Coles JC, Freedom RM.Benson LN, et al. Among authors: freedom rm.J Am Coll Cardiol. 1991 Nov 1;18(5):1303-8. doi: 10.1016/0735-1097(91)90552-k.J Am Coll Cardiol. 1991.PMID: 1918708Free article.