[On the problem of the use of Valsalva's maneuver in the EKG diagnosis of coronary insufficiency].
D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D006334:Heart Function Tests; D006801:Humans; D014636:Valsalva Maneuver
K otázce pouzití Valsalvova pokusu v EKG diagnostice koronární nedostatecnosti.