%0 Journal Article %T Echocardiography in Unstable Angina %A Nixon, J.V. %A Hillert, M.C. %A Lipscomb, Kirk M. %A Smitherman, Thomas C. %J Cardiology %V 68 %N 2 %P 80-90 %@ 0008-6312 %D 1981-01-01 %I S. Karger AG %~ DeepDyve