About dystonia Diagnosis and treatment Derriford Hospital Address Derriford Hospital Derriford Road Plymouth PL6 8DH Phone 01752 202082 / Neurology: 01752 431200 / ENT: 01752 439389 / Paediatric: 0117 342 0187 / Neurosurgery (denervation): 01752 792542 Services available Diagnosis, botulinum toxin injections, denervation, treatment for children Dystonia types All types including dystonia in children