Diurnal variation of tension-type headache intensity and exacerbation: An investigation using computerized ecological momentary assessment
BioPsychoSocial Medicine (2012) - Comment
pubmed: 22943264  doi: 10.1186/1751-0759-6-18  issn: 1751-0759 

Hiroe Kikuchi, Kazuhiro Yoshiuchi, Yoshiharu Yamamoto, Gen Komaki, Akira Akabayashi