References

  1. Scott AB, Kennedy RA, Stubbs HA: Botulinum A toxin injection as a treatment for blepharospasm. Arch Ophthalmol 1985; 103: 347-350
  2. Jankovic J, Orman J: Botulinum A toxin for cranial-cervical dystonia: a double-blind, placebo-controlled study. Neurology 1987; 37: 616-623