MigraineNEJM 377:553-561, Charles, A., 2017
Cerebral PalsyLancet 383:1240-1248, Colver, A.,et al, 2014
DystoniaNEJM 355:818-829, Tarsy,D. &Simon,D.K., 2006
The DystoniasBMJ 300:139-144, Marsden,C.D.&Quinn,N.P., 1990