About: http://webisa.webdatacommons.org/384026142

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	The association increased with increasing headache frequency.Conclusions.???This large questionnaire-based study confirms that migraine and other headaches are associated with respiratory and allergic disorders.
http://www.w3.org/ns/prov#wasQuotedFrom	wiley.com