RT Journal Article SR Electronic T1 Is it not time to reveal the secret sauce of nicotine addiction? JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 420 OP 421 DO 10.1136/tobaccocontrol-2015-052631 VO 24 IS 5 A1 K Michael Cummings YR 2015 UL http://tobaccocontrol.bmj.com/content/24/5/420.abstract AB