About: http://webisa.webdatacommons.org/38376941

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	Whilst this is a very complex issue, it is believed that erectile dysfunction may have a number of causes, including disease, surgery, physical injury, medication, smoking or psychological issues such as stress or guilt.
http://www.w3.org/ns/prov#wasQuotedFrom	erectionspray.co.uk