Nader PR, O'Brien M, Houts R, Bradley R, Belsky J, Crosnoe R, Friedman S, Mei Z, Susman EJ; National Institute of Child Health and Human Development Early Child Care Research Network.
Pediatrics. 2006 Sep;118(3):e594-601. Erratum in: Pediatrics. 2006 Nov;118(5):2270.