Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) BELLENGER NG,"Comparison of left ventricular ejection fraction and volumes in heart failure by echocardiography, radionuclide, ventriculography and cardiovascular magnetic resonance : are they interchangeable?",Eur Heart J,,,2000,21,,1295-1297,https://cir.nii.ac.jp/crid/1573668925559631488,