RT Journal Article SR Electronic T1 The biological embedding of social differences in ageing trajectories JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 111 OP 113 DO 10.1136/jech-2015-206089 VO 70 IS 2 A1 Paolo Vineis A1 Michelle Kelly-Irving A1 Stephen Rappaport A1 Silvia Stringhini YR 2016 UL http://jech.bmj.com/content/70/2/111.abstract AB