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.
Korn A, Bolton SM, Spencer B, Alarcon JA, Andrews L, Voss JG.Korn A, et al. Among authors: spencer b.Int J Environ Res Public Health. 2018 Aug 15;15(8):1751. doi: 10.3390/ijerph15081751.Int J Environ Res Public Health. 2018.PMID: 30111712Free PMC article.
Elkind A, Eardley A, Haran D, Spencer B, Smith A.Elkind A, et al. Among authors: spencer b.Community Med. 1989 May;11(2):157-62. doi: 10.1093/oxfordjournals.pubmed.a042460.Community Med. 1989.PMID: 2752723
Eardley A, Elkind A, Spencer B, Haran D, Hobbs P, McGuinness H.Eardley A, et al. Among authors: spencer b.Health Educ J. 1988;47(2-3):43-7. doi: 10.1177/001789698804700202.Health Educ J. 1988.PMID: 10292169
Haran D, Eardley A, Elkind A, Spencer B, Smith A.Haran D, et al. Among authors: spencer b.J R Soc Health. 1990 Feb;110(1):17-9. doi: 10.1177/146642409011000108.J R Soc Health. 1990.PMID: 2107310