Dyfyniad APA

Dyer, O. (2005). Gap in life expectancy between classes narrows, but disparity in disease-free years remains. BMJ Publishing Group Ltd.

Dyfyniad Arddull Chicago

Dyer, Owen. Gap in Life Expectancy between Classes Narrows, but Disparity in Disease-free Years Remains. BMJ Publishing Group Ltd, 2005.

Dyfyniad MLA

Dyer, Owen. Gap in Life Expectancy between Classes Narrows, but Disparity in Disease-free Years Remains. BMJ Publishing Group Ltd, 2005.

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