@article{Valtorta2016,
author = {Valtorta, N.K. and Kanaan, M. and Gilbody, S. and Ronzi, S. and Hanratty, B.},
title= {Loneliness and social isolation as risk factors for coronary heart disease and stroke: systematic review and meta-analysis of longitudinal observational studies},
year = {2016},
doi = {10.1136/heartjnl-2015-308790},
volume = {102},
number = {13},
pages = {1009--1016},
}