title: [A preliminary study of the characteristic of the first derivative impedance cardiogram in coronary heart disease (author's transl)].
mesh_terms: D002302:Cardiac Output; D002307:Cardiography, Impedance; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D006801:Humans; D007702:Kinetocardiography; D010701:Phonocardiography; D010992:Plethysmography, Impedance