Original Article Validation of TU-NMS Questionaire, Prevalence, and Benefi t of Botulinum Toxin Injection on Non-Motor Symptoms in Primary Craniocervical Dystonia Chanya Wijittongruang, Praween Lolekha Dystonia is a common movement disorder characterized by sustained muscle contraction resulting in abnormal posture.1 Craniocervical dystonia (CCD), is a sustained facial or neck muscles contraction causing abnormal posture or repetitive patterned movements of the areas... เมษายน - มิถุนายน 2568