[On the comparative diagnostic value of various types of thoracic leads of the electrocardiogram; preliminary communication].
D004562:Electrocardiography; D006801:Humans
ELECTROCARDIOGRAPHY
K voprosu o sravnitel'noi diagnosticheskoi tsennosti razlichnykh tipov grudnykh otvedeni elektrokardiogrammy. (Predvaritel'noe soobshchenie).