RT Journal Article SR Electronic T1 Keeping tobacco cheap: how tobacco companies undermine government tax measures JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 483 OP 483 DO 10.1136/tobaccocontrol-2018-054645 VO 27 IS 5 A1 Ruth E Malone YR 2018 UL http://tobaccocontrol.bmj.com/content/27/5/483.abstract AB