RT Journal Article SR Electronic T1 Banning outdoor smoking is scientifically justifiable JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 98 OP 98 DO 10.1136/tc.9.1.98 VO 9 IS 1 A1 JAMES REPACE YR 2000 UL http://tobaccocontrol.bmj.com/content/9/1/98.abstract AB