I would like to express how necessary it was to publish this guide, and also how important it is to disseminate it - both to professionals and to those patients already diagnosed with spasmodic dysphonia or about to receive their first botulinum toxin injection. In doing so, I am echoing what Ms. Encarnación Caballero, President of the Spanish Association of Spasmodic Dysphonia (Asociación Española de Disfonía Espasmódica - AESDE) enthusiastically points out in the introduction, and indeed what she has been practising for years. The activity of AESDE patients serves as encouragement for all the professionals treating this disorder.
