National Center for Health Statistics.Health, United States, 2006 with chartbook on trends in the health of Americans with special feature on pain. Hyattsville, MD: 68-71. www.cdc.gov/nchs/hus.htm (accessed 2007Jul 6).
2.
BrennanF, CarrDB, CousinsM.Pain management: a fundamental human right. Anesth Analg2007;105:205-21.
3.
National Center for Health Statistics.Early release of selected estimates based on data from the January to September 2006 National Health Interview Survey. Released 3/28/2007. www.cdc.gov/nchs/about/major/nhis/released200703.htm (accessed 2007Dec 8).
4.
GreenCR, AndersonKO, BakerTA. The unequal burden of pain: confronting racial and ethnic disparities in pain. Pain Med2003;4:277-94.