Changes in diameter of proximal non-diseased coronary artery segments after application of different nitrate formulations
↵2-150 p < 0.05 artery diameter after step 1 v baseline artery diameter.
↵2-151 p < 0.05 artery diameter after step 2 v artery diameter after step 1.
ic, intracoronary nitroglycerin; spray, isosorbide dinitrate spray; caps, sublingual glyceryltrinitrate capsule.