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.
Weitzman M, Adair R.Weitzman M, et al. Among authors: adair r.Pediatr Clin North Am. 1988 Dec;35(6):1313-23. doi: 10.1016/s0031-3955(16)36585-3.Pediatr Clin North Am. 1988.PMID: 3059301Review.