TY - JOUR A1 - Valtorta, N.K. A1 - Kanaan, M. A1 - Gilbody, S. A1 - Ronzi, S. A1 - Hanratty, B. T1 - Loneliness and social isolation as risk factors for coronary heart disease and stroke: systematic review and meta-analysis of longitudinal observational studies Y1 - 2016 DO - 10.1136/heartjnl-2015-308790 VL - 102 IS - 13 ER -