RT Journal Article SR Electronic T1 Are smoke-free policies good for business? JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 380 OP 380 DO 10.1136/tc.11.4.380 VO 11 IS 4 A1 R Edwards A1 D Reed YR 2002 UL http://tobaccocontrol.bmj.com/content/11/4/380.1.abstract AB