title: MTHFR 677C>T polymorphism and cluster headache.
authors.affiliation: Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215-1204, USA.
authors.forename: Markus
authors.initials: M
authors.lastname: Schürks
authors.forename: Franziska A
authors.initials: FA
authors.lastname: Neumann
authors.forename: Christof
authors.initials: C
authors.lastname: Kessler
authors.forename: Hans-Christoph
authors.initials: HC
authors.lastname: Diener
authors.forename: Heyo K
authors.initials: HK
authors.lastname: Kroemer
authors.forename: Tobias
authors.initials: T
authors.lastname: Kurth
authors.forename: Henry
authors.initials: H
authors.lastname: Völzke
authors.forename: Dieter
authors.initials: D
authors.lastname: Rosskopf