@article{Stafford2011,
author = {M. Stafford and Anne McMunn and Paola Zaninotto and James Nazroo},
title = {Positive and negative exchanges in social relationships as predictors of depression: evidence from the English Longitudinal Study of Aging.},
journal = {Journal of Ageing Health},
year = {2011},
month = {Jan},
volume = {23},
number = {40},
pages = {607-628},
url = {},
}