Koichi Okuda, Kenichi Nakajima. 「Normal Values and Gender Differences of
Left Ventricular Functional Parameters with CardioREPO Software」 Annals
of Nuclear Cardiology. Vol. 3 (2017), No. 1 pp. 29-33.
https://www.jstage.jst.go.jp/article/anc/3/1/3_17-00004/_article/-char/en