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Bell MR, Kaufmann UP, Vlietstra RE, Holmes DR Jr.Bell MR, et al.J Am Coll Cardiol. 1990 Apr;15(5):1146-50. doi: 10.1016/0735-1097(90)90256-o.J Am Coll Cardiol. 1990.PMID: 2312971Free article.
Bell MR, Bailey KR, Reeder GS, Lapeyre AC 3rd, Holmes DR Jr.Bell MR, et al.J Am Coll Cardiol. 1990 Sep;16(3):553-62. doi: 10.1016/0735-1097(90)90342-m.J Am Coll Cardiol. 1990.PMID: 2387928Free article.
Bell MR, Holmes DR Jr, Vlietstra RE, Bresnahan DR.Bell MR, et al.Br Heart J. 1989 May;61(5):417-20. doi: 10.1136/hrt.61.5.417.Br Heart J. 1989.PMID: 2525399Free PMC article.
Bell MR, Lapeyre AC 3rd, Bove AA.Bell MR, et al.J Am Coll Cardiol. 1989 Aug;14(2):523-7. doi: 10.1016/0735-1097(89)90211-8.J Am Coll Cardiol. 1989.PMID: 2754138Free article.
Bell MR, Grill DE, Garratt KN, Berger PB, Gersh BJ, Holmes DR Jr.Bell MR, et al.Circulation. 1995 Jun 15;91(12):2876-81. doi: 10.1161/01.cir.91.12.2876.Circulation. 1995.PMID: 7796495
Bell MR, Garratt KN, Bresnahan JF, Holmes DR Jr.Bell MR, et al.Mayo Clin Proc. 1994 Aug;69(8):723-9. doi: 10.1016/s0025-6196(12)61088-x.Mayo Clin Proc. 1994.PMID: 8035625