About: http://webisa.webdatacommons.org/87479128

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	INTRODUCTIONCalcium channel blockers are widely used in the treatment of hypertension, angina pectoris, cardiac arrhythmias, and other disorders, and the longer-acting preparations have been prescribed with increasing frequency.
http://www.w3.org/ns/prov#wasQuotedFrom	uptodate.com