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.
Wilson N, Battistich V, Syme SL, Boyce WT.Wilson N, et al. Among authors: syme sl.J Adolesc Health. 2002 Jun;30(6):442-7. doi: 10.1016/s1054-139x(01)00416-5.J Adolesc Health. 2002.PMID: 12039514
Wilson N, Syme SL, Boyce WT, Battistich VA, Selvin S.Wilson N, et al. Among authors: syme sl.Am J Health Promot. 2005 Sep-Oct;20(1):11-9. doi: 10.4278/0890-1171-20.1.11.Am J Health Promot. 2005.PMID: 16171156