#5 Lost workdays and decreased effectiveness associated with headache in male military personnel: a preliminary report.

Vadikolias K, Heliopoulos I, Vadikolia C, Batanis G, Rallis E, Diamantidis E, Karidas M, Piperidou H, Artemis N, Milonas I.
6th Congress of Balkan Military Medical Committee,
Plovdiv, Bulgaria, 1-3.10.2001.