Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WYATT HL,Cross-sectional echocardiography. II. Analysis of mathematic models for quantifying volume of formarin-fixed left ventricle,Circulation,,,1980,61,,1119-1125,https://cir.nii.ac.jp/crid/1571135650590908416,