Piccolo, E [Vectorcardiogram in chronic pulmonary heart disease. Correlation with electrocardiogram and revaluation of the electrophysiologic problems]. [electronic resource] - Folia cardiologica 1969 - 121-35 p. digital Publication Type: Journal Article ISSN: 0390-5756 Subjects--Topical Terms: AgedAsthma--diagnosisBronchitis--complicationsChronic DiseaseElectrocardiographyElectrophysiologyFemaleHumansMaleMethodsMiddle AgedPulmonary Emphysema--etiologyPulmonary Heart Disease--diagnosisVectorcardiography