About: http://webisa.webdatacommons.org/424078753

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	Before taking CIALIS, tell your healthcare provider about all your medical problems, including if you: have heart problems such as angina, heart failure, irregular heartbeats, or have had a heart attack.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov