RT Journal Article SR Electronic T1 Health, happiness, and higher levels of social organisation JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 614 OP 614 DO 10.1136/jech.2004.031732 VO 59 IS 8 A1 Ross, Nancy YR 2005 UL http://jech.bmj.com/content/59/8/614.abstract AB