About: http://webisa.webdatacommons.org/370322209

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	Some patients take nitrate drugs such as nitroglycerin or other medications to treat angina.Procedures may be needed to open blocked or narrowed coronary artery and improve blood flow to the heart.
http://www.w3.org/ns/prov#wasQuotedFrom	umm.edu