Botulinum Toxin and cerebral palsy

Hello! I am a paediatric physiotherapist who has worked for the last 30 years with children with motor disorders such as cerebral palsy and their families. I work for a children's hospital in London and we are about to evaluate our Botulinum Toxin (BOTOX) Service by carrying out a study looking at the effects of toxin on children and young people. Before we start, I want to make sure that we are asking the right questions and would really value your help.
If you would be willing to help please could you contact me and I will send you a short questionnaire which you and your child (if they would be happy/able to) could complete together - just to check that we are on the right lines and asking the right questions about the effects of toxin lesley.katchburian@gosh.nhs.uk
Many thanks
Lesley