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Ohkawara K, Ishikawa-Takata K, Park JH, Tabata I, Tanaka S.Ohkawara K, et al.BMC Res Notes. 2011 Nov 24;4:512. doi: 10.1186/1756-0500-4-512.BMC Res Notes. 2011.PMID: 22114990Free PMC article.