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King DL, Coffin Lel-K, Maurer MS.King DL, et al. Among authors: maurer ms.J Am Soc Echocardiogr. 2002 Dec;15(12):1503-6. doi: 10.1067/mje.2002.126418.J Am Soc Echocardiogr. 2002.PMID: 12464919