RT Journal Article SR Electronic T1 BOOKS RECEIVED JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 112 OP 112 DO 10.1136/jech.50.1.112 VO 50 IS 1 YR 1996 UL http://jech.bmj.com/content/50/1/112.1.abstract AB