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.
Alexander KL, Entwisle DR, Olson LS.Alexander KL, et al. Among authors: entwisle dr.New Dir Youth Dev. 2007 Summer;(114):11-32. doi: 10.1002/yd.210.New Dir Youth Dev. 2007.PMID: 17623410
Alexander KL, Entwisle DR.Alexander KL, et al. Among authors: entwisle dr.Monogr Soc Res Child Dev. 1988;53(2):1-157.Monogr Soc Res Child Dev. 1988.PMID: 3226426