RT Journal Article SR Electronic T1 What ifs: and what now? JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 593 OP 594 DO 10.1136/tc-2022-057662 VO 31 IS 5 A1 Malone, Ruth E YR 2022 UL http://tobaccocontrol.bmj.com/content/31/5/593.abstract AB