title: Clinical study of atrial wave in impedance cardiogram.
mesh_terms: D000328:Adult; D000368:Aged; D002307:Cardiography, Impedance / Q000379:methods*; D003327:Coronary Disease / Q000175:diagnosis* / Q000503:physiopathology; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010992:Plethysmography, Impedance / Q000379:methods*