@article{Luo2012,
author = {Luo, Y. and Hawkley, L.C. and Waite, L.J. and Cacioppo, J.T.},
title= {Loneliness, health, and mortality in old age: A national longitudinal study},
year = {2012},
doi = {10.1016/j.socscimed.2011.11.028},
journal = {Social Science and Medicine },
volume = {74},
number = {6},
pages = {907−914},
}