| 21. | The study is based on a comparison of national health surveys done in 1987 and 1997.
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| 22. | The third health survey in Nord-Tr�ndelag, HUNT 3, was conducted from October 2006 to June 2008.
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| 23. | The following demographic statistics are from the 2011 Nepal Demographic and Health Survey ( NDHS ).
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| 24. | The group will carry out a health survey for the rebels'disease-ridden camp as well, he said.
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| 25. | There is apparently only one completed health survey of Basenjis, a 2004 UK Kennel Club survey.
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| 26. | Meanwhile, the organization completed a health survey of the children of more than 600 atomic veterans.
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| 27. | In a 1994 American Health survey, only 16 percent of respondents claimed to use sunscreen daily.
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| 28. | One state Department of Public Health survey found marijuana use increased 60 percent between 1990 and 1993.
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| 29. | In 1987, roughly two-thirds of men ages 45 to 64 smoked, according to a national health survey.
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| 30. | Health surveys have showed over the years maternal health has improved with the use of reproductive health services.
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