twenty-nine patients with angina at rest took part in a randomized placebo-controlled short-term study to assess the relative effectiveness of different dosages of nifedipine ( n ) , verapamil ( v ) and isosorbide dinitrate ( isdn ) versus placebo and to evaluate the antianginal effects of a sustained-release preparation of isdn ( sr ) , of n retard form ( r ) and of v retard form ( r ) .
C0002962
angina
C0022252
isdn