Ethnic differences in adolescent smoking prevalence in California: are multi-ethnic youth at higher risk?
J. Unger, P. Palmer, C. Dent, L. A. Rohrbach, and C Johnson
Tob Control. 2000 June; 9(Suppl 2): ii9–ii14. doi: 10.1136/tc.9.suppl_2.ii9.PMCID: PMC1766278