RT Journal Article SR Electronic T1 Reducing the risk to minors participating in an urban intervention program JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 92 DO 10.1136/tc.4.1.92a VO 4 IS 1 A1 W. D. Billows A1 D. Schnopp Wyatt A1 L. A. Jason YR 1995 UL http://tobaccocontrol.bmj.com/content/4/1/92.1.abstract AB