Botulinum toxin type A versus botulinum toxin type B for cervical dystonia

  • Protocol
  • Intervention


  • J Costa,

    Corresponding author
    1. Faculdade de Medicina Lisboa, Instituto de Farmacologia e Terapêutica Geral, Lisboa, PORTUGAL
    • J Costa, Instituto de Farmacologia e Terapêutica Geral, Faculdade de Medicina Lisboa, Av. Prof. Egas Moniz, Lisboa, 1649-028, PORTUGAL.

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  • A Borges,

  • C Espírito-Santo,

  • J Ferreira,

  • M Coelho,

  • P Moore,

  • C Sampaio


This is the protocol for a review and there is no abstract. The objectives are as follows:

To compare the clinical efficacy and safety of Botulinum Toxin Type A versus Botulinum Toxin Type B in the treatment of Cervical Dystonia.