Use of Cocaine by Heavy Drinkers Increases Vulnerability to Developing Alcohol Dependence: A 4-Year Follow-Up Study. Gabriel Rubio, M.D., Ph.D.; Jorge Manzanares, Ph.D.; Mónica Jiménez, Ph.D.; Roberto Rodríguez-Jiménez, M.D., Ph.D.; Isabel Martínez, M.D., Ph.D.; Miguel M. Iribarren, M.D.; Miguel A. Jiménez-Arriero, M.D., Ph.D.; Guillermo Ponce, M.D.; and Tomás Palomo, M.D., Ph.D. J Clin Psychiatry 2008;69:563-570. Online Ahead of Print March 25, 2008[ Abstract ]