Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

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.

Https

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.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

My NCBI Filters
Text availability
Article attribute
Article type
Publication date

Search Results

420 results
Filters applied: . Clear all Results are displayed in a computed author sort order. Results by year timeline is unavailable
Page 1
Surveillance of smoking during pregnancy in Sweden, 1983-1987.
Ericson A, Gunnarskog J, Källén B, Otterblad-Olausson P. Ericson A, et al. Among authors: kallen b. Acta Obstet Gynecol Scand. 1991;70(2):111-7. doi: 10.3109/00016349109006191. Acta Obstet Gynecol Scand. 1991. PMID: 1882657
Fetal growth and congenital malformations.
Nikkilä A, Källén B, Marsál K. Nikkilä A, et al. Among authors: kallen b. Ultrasound Obstet Gynecol. 2007 Mar;29(3):289-95. doi: 10.1002/uog.3932. Ultrasound Obstet Gynecol. 2007. PMID: 17290366 Free article.
420 results