Postcodes as useful markers of social class: population based study in 26 000 British households |
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Authors: | Danesh J Gault S Semmence J Appleby P Peto R |
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Institution: | Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Radcliffe Infirmary, Oxford OX2 6HE. john.danesh@balliol.ox.ac.uk |
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