TY - JOUR A1 - Walker, S.P. A1 - Chang, S.M. A1 - Vera-Hernández, M. A1 - Grantham-McGregor, S. T1 - Early childhood stimulation benefits adult competence and reduces violent behavior Y1 - 2011 DO - 10.1542/peds.2010-2231 JF - Pediatrics VL - 127 IS - 5 ER -