the mean percentage of change in diameter ( diameter before - diameter after a small dose of ergonovine ) /diameter before a small dose of ergonovine x 100 % in patients without variant angina was not significantly different from that in patients with variant angina ( 5.2 +/- 9.5 % vs 7.0 +/- 11.9 % , respectively ) .
C0014704
ergonovine
C0002963
variant angina