Bibliography
- Langley PC . National Health and Wellness Survey 2010. Kantar Health, Princeton, NJ, USA (2010).
- Breivik H , CollettB, VentafriddaV, CohenR, GallacherD. Survey of chronic pain in Europe: prevalence, impact on daily life, and treatment. Eur. J. Pain10(4) , 287–233 (2006).
▪ Websites
- European Federation of International Association for the Study of Pain Chapters www.efic.org
- The Societal Impact of Pain www.sip-meetings.org