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Koshi-ishi Y, Nakazato Y, Masui K, Seki E, Nagashima Y, Takei H, Goya T, Kawachi R.Koshi-ishi Y, et al. Among authors: takei h.Gan To Kagaku Ryoho. 2009 Aug;36(8):1256-8.Gan To Kagaku Ryoho. 2009.PMID: 19692764Japanese.