TY - GEN AU - Melendez,L J AU - Jones,D T AU - Salcedo,J R TI - Usefulness of three additional electrocardiographic chest leads (V7, V8, and V9) in the diagnosis of acute myocardial infarction SN - 0008-4409 PY - 1979///0115 KW - Acute Disease KW - Clinical Enzyme Tests KW - Coronary Care Units KW - Electrocardiography KW - instrumentation KW - Humans KW - Middle Aged KW - Myocardial Infarction KW - diagnosis KW - Thorax N1 - Publication Type: Journal Article ER -