An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Duke N, Ireland M, Borowsky IW.Duke N, et al.Child Care Health Dev. 2005 Sep;31(5):563-73. doi: 10.1111/j.1365-2214.2005.00551.x.Child Care Health Dev. 2005.PMID: 16101652
Duke NN, Borowsky IW, Pettingell SL, McMorris BJ.Duke NN, et al.Matern Child Health J. 2011 Jan;15(1):87-97. doi: 10.1007/s10995-009-0550-6.Matern Child Health J. 2011.PMID: 20012345
Duke NN, Borowsky IW, Pettingell SL.Duke NN, et al.Matern Child Health J. 2012 Jan;16(1):149-57. doi: 10.1007/s10995-010-0731-3.Matern Child Health J. 2012.PMID: 21153758