About: http://webisa.webdatacommons.org/31557437

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	Frequently, patients present to the centers when they start to develop problems, such as fatigue, exercise intolerance, chest pain, and shortness of breath or palpitations.
http://www.w3.org/ns/prov#wasQuotedFrom	eurekalert.org