In 2011, Survey Results of Pain Treatments in Adults with Cerebral Palsy with  83 adults

BACKGROUND: To identify the types and frequencies of pain treatments used by individuals with cerebral palsy (CP); examine the perceived effectiveness of these treatments, and identify the types of healthcare providers that were accessed for pain-related services.

You can read the full article here => http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036542/