TY - JOUR A1 - Holt-Lunstad, J. A1 - Smith, T.B. A1 - Layton, J.B. T1 - Social relationships and mortality risk: A meta-analytic review Y1 - 2010 DO - 10.1371/journal.pmed.1000316 JF - PLoS Med VL - 7 IS - 7 ER -