Geister, T. L., Quintanar-Solares, M., Martin, M., Aufhammer, S., & Asmus, F. (2013). Qualitative development of the ‘Questionnaire on Pain caused by Spasticity (QPS),’ a pediatric patient‐reported outcome for spasticity‐related pain in cerebral palsy. Springer International Publishing.

Geister, Thorin L., Manjari Quintanar-Solares, Mona Martin, Stephan Aufhammer, und Friedrich Asmus. Qualitative Development of the ‘Questionnaire On Pain Caused By Spasticity (QPS),’ a Pediatric Patient‐reported Outcome for Spasticity‐related Pain in Cerebral Palsy. Springer International Publishing, 2013.

Geister, Thorin L., et al. Qualitative Development of the ‘Questionnaire On Pain Caused By Spasticity (QPS),’ a Pediatric Patient‐reported Outcome for Spasticity‐related Pain in Cerebral Palsy. Springer International Publishing, 2013.