Wilkinson, P., Pattenden, S., Armstrong, B., Fletcher, A., Kovats, R. S., Mangtani, P., & McMichael, A. J. (2004). Vulnerability to winter mortality in elderly people in Britain: Population based study. BMJ Publishing Group Ltd.

Wilkinson, Paul, Sam Pattenden, Ben Armstrong, Astrid Fletcher, R Sari Kovats, Punam Mangtani, και Anthony J. McMichael. Vulnerability to Winter Mortality in Elderly People in Britain: Population Based Study. BMJ Publishing Group Ltd, 2004.

Wilkinson, Paul, et al. Vulnerability to Winter Mortality in Elderly People in Britain: Population Based Study. BMJ Publishing Group Ltd, 2004.