“Expenditures for Trauma-Related Disorders among the Elderly and Non-Elderly, 2009: Estimates for the U.S. Civilian Noninstitutionalized Population,” by Susan Yeh, Namrata Uberoi, and Joel Cohen (Statistical Brief No. 397, January 2013, .pdf and HTML format, 7p.).
meps.ahrq.gov/mepsweb/data_stats/Pub_ProdResults_Details.jsp?pt=Statistical+Brief&opt=2&id=1092
