control left ventricular sd was 14.5 +/- 4 degrees , increased in all patients to 22.8 +/- 5 degrees during angina at rest ( p less than 0.01 ) and returned to control values after isosorbide dinitrate administration ( 14.2 +/- 4 degrees ) .
C0002962
angina
C0022252
isosorbide dinitrate