RT Journal Article SR Electronic T1 After precessation nicotine replacement therapy, abrupt cessation increases abstinence more than gradual cessation in smokers ready to quit JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 174 OP 174 DO 10.1136/ebmed-2016-110489 VO 21 IS 5 A1 Elias M Klemperer A1 John R Hughes YR 2016 UL http://ebm.bmj.com/content/21/5/174.abstract AB