Ak. Tewary, CORRELATION BETWEEN CLINICAL-RESPONSE AND INJECTION QUALITY IN TREATMENT OF SPASMODIC DYSPHONIA, Journal of Laryngology and Otology, 110(6), 1996, pp. 551-553
Botulinum toxin injection is an effective treatment for spasmodic dysp
honia. There are ethical difficulties in performing a controlled place
bo trial to assess the effectiveness of this treatment. This paper sho
ws a significantly decreased clinical response following technically p
oor injections given to patients who respond well to good quality inje
ctions.