the dynamics of the central circulation were measured by a radionuclidic technique in 18 men with high-risk preinfarctional angina who received therapy with isosorbide dinitrate ( n equals 18 ) , intra-aortic balloon pumping ( n equals 8 ) , or both ( n equals 8 ) .
C0002962
angina
C0022252
isosorbide dinitrate