Kevin M. Beaver, Kristy Holtfreter Journal of Genetic Psychology http://www.tandfonline.com/doi/abs/10.3200/GNTP.170.2.101-114#.U2EUecfUtss 2009 Date Wed, 06/18/2014 - 08:20 PM Research Types ADD Health Delinquency Fraudulent Behavior Gene X Environment Interaction Genetic Influence Genetic Polymorphisms Kevin M. Beaver Males Peers