Many complicating factors, say Clark and others, further taint survey results, including geographical, cultural and racial differences among patients.

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But, new research conducted by political scientists from the University of Chicago, suggest the effort could be compromised by huge racial differences on how to rebuild.

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Unlike the USA, which has been a well-established federation on roughly the same geographic map over a century, EU is still a collection of states in an area where ethnic diversities, racial differences, ideology and economic antagonism have changed the map several times.

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The racial and nationality differences that exist amongst the owners and the employees of most of the tourist companies of the Caribbean.

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PPIC, lies in racial and ethnic differences: California's Latinos, who make up 35% of the population, and blacks (around 7%) are much more likely to be overweight than California's non-Hispanic whites (45%) or Asians (12%).

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But issues emerged from cases where racial groups are compared, and differences are found.

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At the same time, many prominent geneticists, including those who mapped the human genome, have publicly said that genetic differences, especially those that occur along racial lines, don't amount to much.

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