Assertion: angina's cause | /r/HasSubevent | decreased oxygen supply
Facets:
Source sentences:
text: The cause is insufficient coronary blood flow, resulting in a decreased oxygen supply when there is increased myocardial demand for oxygen in response to physical exertion or emotional stress.
text: The cause is insufficient coronary blood flow, resulting in a decreased oxygen supply when there is increased myocardial demand for oxygen in response o physical exertion or emotional stress which leads to the need for oxygen exceeds the supply.