HGFAC and cervical dystonia: In an exploratory study, authors have shown that there is a significant (p < 0.5) difference between different proteins like dopamine-β-hydroxylase (DBH), factor XIIIA1 (F13 A1), and hepatocyte growth factor activator (HGFAC) and other proteins related to acute inflammatory response, acute phase response in patients with cervical dystonia with or without thyroid disease compared to normal control population.