Authors: Charles A Nelson; Charles H Zeanah; Nathan A Fox; Peter J Marshall; Anna T Smyke; Donald Guthrie Journal: Science Date: 2007-12-21 Impact factor: 47.728
Authors: Richard E Tremblay; Daniel S Nagin; Jean R Séguin; Mark Zoccolillo; Philip D Zelazo; Michel Boivin; Daniel Pérusse; Christa Japel Journal: Pediatrics Date: 2004-07 Impact factor: 7.124