About: http://webisa.webdatacommons.org/85415775

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	Those premature beats fire from the main pumping chamber of the heart and are a 'back-up' system for the normal electrical system in the heart.
http://www.w3.org/ns/prov#wasQuotedFrom	medhelp.org