Differential DiagnosisThoracic Key, Southerland,A.W.,et al, 2016
Cluster HeadacheBMJ 344:e2407, Nesbitt,A.D.,et al, 2012
Treatment of Hemifacial Spasm with Botulinum ToxinMuscle & Nerve 15:1045-1049992., Yoshimura,D.M.,et al, 1992