“QuickStats: Death Rate From Complications of Medical and Surgical Care Among Adults Aged greater than or equal to 45 Years, by Age Group–United States, 1999-2009″ (US Centers for Disease Control, Vol. 61, No. 37, Sep. 21, 2012, HTML and .pdf format, p. 750).
www.cdc.gov/mmwr/preview/mmwrhtml/mm6137a6.htm?s_cid=mm6137a6_w
