Browse by Study
- National Data Base on Aging [United States], 1981 (1)
- National Health and Nutrition Examination Survey (NHANES), 2001-2002 (1)
- National Health and Nutrition Examination Survey (NHANES), 2003-2004 (1)
- National Health and Nutrition Examination Survey (NHANES), 2005-2006 (1)
- National Health and Nutrition Examination Survey (NHANES), 2007-2008 (1)