About: http://webisa.webdatacommons.org/24827701

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	However, this is often hard to prove.An ECG may show abnormal heart rhythms related to this syndrome.Holter monitoring is an effective tool for diagnosing sick sinus syndrome.
http://www.w3.org/ns/prov#wasQuotedFrom	mch.com