The role of adhesion molecules in migraine: a debate.

Presents a letter to the editor of the 'Cephalalgia' journal, published in the December 2000 issue of the journal. Critique on M. Empl's paper on T-cell subset variations and integrins expression in migraine; Molecular events involved in migraine attacks; Implications of the conflicting results in Ebel's paper and the author's research; Importance of a more integrated research on migraine.