RT Journal Article SR Electronic T1 How to access tobacco industry documents JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP i39 OP i39 DO 10.1136/tc.11.suppl_1.i39 VO 11 IS suppl 1 YR 2002 UL http://tobaccocontrol.bmj.com/content/11/suppl_1/i39.abstract AB