electrocardiogram: ventricular activation time (VAT) 0.06 seconds or more in leads V1 and V2
electrocardiogram: ventricular activation time (vat) 0.06 seconds or more in leads v1 and v2
electrocardiogram: ventricular activation time (VAT) 0.06 seconds or more in leads V1 and V2 (procedure)
electrocardiogram: ventricular activation time (vat) 0.06 seconds or more in leads v1 and v2 (procedure)