RT Journal Article SR Electronic T1 International Network Towards Smoke-free Hospitals JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 59 DO 10.1136/tc.1.1.59 VO 1 IS 1 A1 L. L. Fairbanks YR 1992 UL http://tobaccocontrol.bmj.com/content/1/1/59.abstract AB