RT Journal Article SR Electronic T1 Loneliness and social isolation and increased risk of coronary heart disease and stroke: clinical implications JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 2016 OP 2016 DO 10.1136/heartjnl-2016-310073 VO 102 IS 24 A1 Redford B Williams YR 2016 UL http://heart.bmj.com/content/102/24/2016.abstract AB