Citation

Diener HC, Pfaffenrath V, Schnitker J, Friede M, Henneicke-von Zepelin HH. 2005. Efficacy and safety of 6.25 mg t.i.d. feverfew CO2-extract (MIG-99) in migraine prevention -- a randomized, double-blind, multicentre, placebo-controlled study. Cephalalgia: An International Journal of Headache 25(11):1031-1041.