Health service use and expenses for migraines and other headaches [electronic resource] : 2002-03 (average annual estimates) / Steven R. Machlin and G. Edward Miller.
Imprint
[Rockville, Md.] : Medical Expenditure Panel Survey, Agency for Healthcare Research and Quality, [2006]
Mode of access: Internet from the MEPS AHRQ web site. Address as of 9/23/2008: http://www.meps.ahrq.gov/mepsweb/data_files/publications/st115/stat115.pdf; current access available via PURL.