TY - JOUR A1 - Levine, A. A1 - Huang, Y.Y. A1 - Drisaldi, B. A1 - Griffin Jr., E.A. A1 - Pollak, D.D. A1 - Xu, S. A1 - Yin, D. A1 - Schaffran, C. A1 - Kandel, D.B. A1 - Kandel, E.R. T1 - Molecular mechanism for a gateway drug: Epigenetic changes initiated by nicotine prime gene expression by cocaine Y1 - 2011 DO - 10.1126/scitranslmed.3003062 JF - Science Translational Medicine VL - 3 IS - 107 ER -