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.
Gissler M, Hemminki E, Lönnqvist J.Gissler M, et al.BMJ. 1996 Dec 7;313(7070):1431-4. doi: 10.1136/bmj.313.7070.1431.BMJ. 1996.PMID: 8973229Free PMC article.
Gissler M, Karro H, Tellmann A, Hemminki E.Gissler M, et al.BJOG. 2000 Feb;107(2):179-85. doi: 10.1111/j.1471-0528.2000.tb11688.x.BJOG. 2000.PMID: 10688501
Artama M, Ritvanen A, Gissler M, Isojärvi J, Auvinen A.Artama M, et al. Among authors: gissler m.Int J Epidemiol. 2006 Apr;35(2):280-7. doi: 10.1093/ije/dyi234. Epub 2005 Nov 9.Int J Epidemiol. 2006.PMID: 16280367