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.
Carstairs SD, Urquhart A, Hoffman J, Clark RF, Cantrell FL.Carstairs SD, et al. Among authors: clark rf.J Med Toxicol. 2010 Sep;6(3):307-10. doi: 10.1007/s13181-010-0017-6.J Med Toxicol. 2010.PMID: 20358418Free PMC article.
Schwarz KA, Cantrell FL, Vohra RB, Clark RF.Schwarz KA, et al. Among authors: clark rf.Pediatr Emerg Care. 2007 Sep;23(9):651-2. doi: 10.1097/PEC.0b013e31814a6aac.Pediatr Emerg Care. 2007.PMID: 17876257