title: [OBSERVATIONS ON THE CLINICAL VALUE OF THE 3 PRECORDIAL LEAD].
mesh_terms: D003327:Coronary Disease; D004562:Electrocardiography; D006801:Humans; D035441:Thoracic Wall
keywords: CORONARY DISEASE; ELECTROCARDIOGRAPHY
vernacular_title: OSSERVAZIONI SUL VALORE CLINICO DELLA DERIVAZIONE 3 PRECORDIALE.