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Singh M, Rihal CS, Lennon RJ, Spertus J, Rumsfeld JS, Holmes DR Jr.Singh M, et al. Among authors: rihal cs.Mayo Clin Proc. 2007 Jun;82(6):701-8. doi: 10.4065/82.6.701.Mayo Clin Proc. 2007.PMID: 17550750
Rihal CS, Nishimura RA, Holmes DR Jr.Rihal CS, et al.Am Heart J. 1991 Dec;122(6):1750-6. doi: 10.1016/0002-8703(91)90292-p.Am Heart J. 1991.PMID: 1957768