RT Journal Article SR Electronic T1 Why trade and investment liberalisation may threaten effective tobacco control efforts JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 68 OP 70 DO 10.1136/tc.10.1.68 VO 10 IS 1 A1 CALLARD, CYNTHIA A1 CHITANONDH, HATAI A1 WEISSMAN, ROBERT YR 2001 UL http://tobaccocontrol.bmj.com/content/10/1/68.abstract AB