About: http://webisa.webdatacommons.org/227817629

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Symptoms can happen when the heart is working harder and needs more oxygen, such as during exercise.
http://www.w3.org/ns/prov#wasQuotedFrom	networkofcare.org