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Niwano S, Wakisaka Y, Kojima J, Yumoto Y, Inuo K, Hara H, Saito J, Niwano H, Izumi T.Niwano S, et al. Among authors: izumi t.Circ J. 2003 Feb;67(2):133-8. doi: 10.1253/circj.67.133.Circ J. 2003.PMID: 12547995Free article.
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Niwano S, Sasaki T, Kurokawa S, Kiryu M, Fukaya H, Hatakeyama Y, Niwano H, Fujiki A, Izumi T.Niwano S, et al. Among authors: izumi t.Circ J. 2009 Jul;73(7):1210-8. doi: 10.1253/circj.cj-08-1139. Epub 2009 May 13.Circ J. 2009.PMID: 19436116Free article.Clinical Trial.
Kurokawa S, Niwano S, Kiryu M, Murakami M, Ishikawa S, Yumoto Y, Moriguchi M, Niwano H, Kosukegawa T, Izumi T.Kurokawa S, et al. Among authors: izumi t.Circ J. 2010 May;74(5):876-84. doi: 10.1253/circj.cj-09-0937. Epub 2010 Mar 30.Circ J. 2010.PMID: 20354335Free article.Clinical Trial.