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.
Heineman KR, Middelburg KJ, Bos AF, Eidhof L, La Bastide-Van Gemert S, Van Den Heuvel ER, Hadders-Algra M.Heineman KR, et al.Dev Med Child Neurol. 2013 Jun;55(6):539-45. doi: 10.1111/dmcn.12100. Epub 2013 Mar 9.Dev Med Child Neurol. 2013.PMID: 23480426Free article.