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.
Richards M, Wadsworth M, Rahimi-Foroushani A, Hardy R, Kuh D, Paul A.Richards M, et al. Among authors: hardy r.Dev Med Child Neurol. 1998 Mar;40(3):163-7.Dev Med Child Neurol. 1998.PMID: 9566652Free article.
Wadsworth M, Marshall S, Hardy R, Paul A.Wadsworth M, et al. Among authors: hardy r.BMJ. 1999 Dec 11;319(7224):1576.BMJ. 1999.PMID: 10591735Free PMC article.No abstract available.