TY - JOUR T1 - CHanges in cigarette and illicit drug use among us teenagers AU - Lopez MF, Compton WM, Volkow ND Y1 - 2009/09/07 N1 - 10.1001/archpediatrics.2009.156 JO - Archives of Pediatrics & Adolescent Medicine SP - 869 EP - 870 VL - 163 IS - 9 N2 - Tobacco has been the most typical first drug used by youth in the United States, and rates of its use generally have been much higher than rates of illicit substances among youth. While tobacco use remains a major public health problem, dramatic strides have been made in the past 10 years in reducing the prevalence of use, particularly among teenagers SN - 1072-4710 M3 - doi: 10.1001/archpediatrics.2009.156 UR - http://dx.doi.org/10.1001/archpediatrics.2009.156 ER -