title: [A three month headache].
authors.affiliation: HYKS:n neurologian klinikka.
authors.forename: Perttu J
authors.initials: PJ
authors.lastname: Lindsberg
mesh_terms: D005500:Follow-Up Studies; D006261:Headache / Q000139:chemically induced* / Q000503:physiopathology; D006689:Hodgkin Disease / Q000175:diagnosis / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018570:Risk Assessment; D012720:Severity of Illness Index