About: http://webisa.webdatacommons.org/116219321

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	Studies have shown evidence of Viagra use among men who have sex with men, sometimes for the purpose of overcoming the erection-inhibiting effects of alcohol or street drugs such as ecstasy and crystal methamphetamine.
http://www.w3.org/ns/prov#wasQuotedFrom	ncbcenter.org