RT Journal Article SR Electronic T1 Consolidation in the tobacco industry JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 426 OP 428 DO 10.1136/tc.7.4.426 VO 7 IS 4 A1 ROSS HAMMOND YR 1998 UL http://tobaccocontrol.bmj.com/content/7/4/426.abstract AB