@article{Hillemeier2010, author = {Hillemeier, M.M. and Morgan, P.L. and Farkas, G. and Maczuga, S.A.}, title= {Perinatal and socioeconomic risk factors for variable and persistent cognitive delay at 24 and 48 months of age in a national sample}, year = {2010}, doi = {10.1007/s10995-010-0656-x}, journal = {Maternal and Child Health Journal}, volume = {15}, pages = {1001--1010}, }