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Summary health statistics for U.S. adults National Health Interview Survey, 2004
Cyhoeddwyd 2006Llyfr -
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Summary health statistics for U.S. adults National Health Interview Survey, 2005
Cyhoeddwyd 2006Llyfr -
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Summary health statistics for U.S. adults National Health Interview Survey, 2003
Cyhoeddwyd 2005Llyfr -
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The self-employed are less likely to have health insurance than wage-earners so whatn
Cyhoeddwyd 2001Llyfr -
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