About: http://webisa.webdatacommons.org/340797666

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	Techniques such as deep breathing exercises, progressive muscle relaxation, mental imagery relaxation or relaxation to music -- can be very effective in reducing or eliminating the tension that produces a headache.
http://www.w3.org/ns/prov#wasQuotedFrom	headaches.org