PT - JOURNAL ARTICLE AU - C. A. Patten AU - E. Gilpin AU - S. W. Cavin AU - J. P. Pierce TI - Workplace smoking policy and changes in smoking behaviour in California: a suggested association AID - 10.1136/tc.4.1.36 DP - 1995 Mar 01 TA - Tobacco Control PG - 36 VI - 4 IP - 1 4099 - http://tobaccocontrol.bmj.com/content/4/1/36.short 4100 - http://tobaccocontrol.bmj.com/content/4/1/36.full SO - Tob Control1995 Mar 01; 4