RT Journal Article SR Electronic T1 Stopping smoking in the weeks prior to surgery has no effect on the risk of postoperative complications JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 101 OP 102 DO 10.1136/ebm.2011.100167 VO 17 IS 3 A1 Clair, Carole A1 Rigotti, Nancy A YR 2012 UL http://ebm.bmj.com/content/17/3/101.abstract AB