dynamic stenosis can be caused by 1 ) `` '' physiologic '' '' increase of coronary tone , as in stable angina , 2 ) spasm , as in variant angina , and 3 ) thrombosis , usually in combination with `` '' physiologic '' '' changes in tone or with spasm , or both , as in unstable angina .
C0002963
n variant angi
C0002965
unstable an