RT Journal Article SR Electronic T1 The need for global risk factor surveillance JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 370 OP 370 DO 10.1136/jech.55.6.370 VO 55 IS 6 A1 BERNARD C K CHOI A1 RUTH BONITA A1 DAVID V MCQUEEN YR 2001 UL http://jech.bmj.com/content/55/6/370.abstract AB