About: http://webisa.webdatacommons.org/389299449

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	Headache is the most common side effect of nitrates; often dose-related and reported by up to 82% of patients in placebo-controlled trials.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov