About: http://webisa.webdatacommons.org/114113045

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, if an atrial fibrillation patient also has very low blood pressure ??? which makes drugs such as beta blockers and calcium blockers unsafe ??? digoxin might be a reasonable second choice, he added.
http://www.w3.org/ns/prov#wasQuotedFrom	nationalpost.com