Fig. 3From: Are paraspinous intramuscular injections of botulinum toxin a (BoNT-A) efficient in the treatment of chronic low-back pain? A randomised, double-blinded crossover trialQuebec Back Pain Disability Scale at D0, 30, 90 and 120 for patients treated by Botulinum toxin A (group A) or by placebo (group B)Back to article page
