Tse (Kawai) AC, Rich-Edwards JW, Rifas-Shiman SL, Gillman MW, Oken E. Association of maternal prenatal depressive symptoms with child cognition at age 3 years. Paediatr Perinat Epidemiol. 2010 May;24(3):232-40. doi: 10.1111/j.1365-3016.2010.01113.x