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Miller MJ, Kuntz RE, Friedrich SP, Leidig GA, Fishman RF, Schnitt SJ, Baim DS, Safian RD.Miller MJ, et al. Among authors: friedrich sp.Am J Cardiol. 1993 Mar 15;71(8):652-8. doi: 10.1016/0002-9149(93)91005-3.Am J Cardiol. 1993.PMID: 8447260