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.
Butler R, Heron J.Butler R, et al. Among authors: heron j.Child Care Health Dev. 2008 Jan;34(1):65-70. doi: 10.1111/j.1365-2214.2007.00781.x.Child Care Health Dev. 2008.PMID: 18171446
Butler RJ, Golding J, Heron J; ALSPAC Study Team.Butler RJ, et al. Among authors: heron j.Child Care Health Dev. 2005 Nov;31(6):659-67. doi: 10.1111/j.1365-2214.2005.00556.x.Child Care Health Dev. 2005.PMID: 16207223
Paget A, Parker C, Heron J, Logan S, Henley W, Emond A, Ford T.Paget A, et al. Among authors: heron j.Child Care Health Dev. 2018 Mar;44(2):285-296. doi: 10.1111/cch.12525. Epub 2017 Sep 14.Child Care Health Dev. 2018.PMID: 28913834