1. Doing Focus Groups
2. Six-Item Screener to Identify Cognitive Impairment Among Potential Subjects for Clinical Research
3. Cohen R. & Martinez , M. ( 2012 ).Health insurance coverage: Early release of estimates from the National Health Interview Survey, 2011.Division of Health Interview Statistics, National Center for Health Statistics. Retrieved from http://www.cdc.gov/nchs/data/nhis/earlyrelease/insur201206.pdf
4. Congressional Budget Office . ( 2012 , November ).Offsetting effects of prescription drug use on Medicare's spending for medical services. Retrieved from http://www.cbo.gov/sites/default/files/cbofiles/attachments/43741-MedicalOffsets-11-29-12.pdf