Assertion: angina's symptom | /r/HasProperty | refractory
Facets:
value: to calcium channel blockers
type: OTHER
value: to nitrates
type: TRANSITIVE-OBJECT
Source sentences:
text: Patients whose symptoms are refractory to nitrates and calcium channel blockers should be referred to a cardiologist for consideration of alternative therapy such as amiodarone,clonidine, or guanethidine.