@article{Rau2004,
author = {Rau, R.},
title= {Winter mortality in elderly people in Britain: Lack of social gradient in winter excess mortality is obvious in Denmark},
year = {2004},
doi = {10.1136/bmj.329.7472.976-b},
journal = {British Medical Journal },
volume = {329},
number = {7472–977},
}