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

Filters

My Custom Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1974 3
1975 2
1976 2
1977 1
1978 2
1979 1
1980 3
1981 1
1985 5
1989 4
1992 1
1993 3
1994 1
1995 2
1996 8
1997 9
1998 5
1999 4
2001 5
2002 2
2003 2
2004 5
2006 4
2007 5
2008 3
2009 4
2010 11
2011 26
2012 22
2013 14
2014 13
2015 5
2016 5
2017 8
2018 9
2019 4
2020 2
2022 2
2024 0

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

177 results

Results by year

Filters applied: . Clear all
Page 1
Folate status and health: challenges and opportunities.
Obeid R, Oexle K, Rißmann A, Pietrzik K, Koletzko B. Obeid R, et al. Among authors: pietrzik k. J Perinat Med. 2016 Apr;44(3):261-8. doi: 10.1515/jpm-2014-0346. J Perinat Med. 2016. PMID: 25825915 Free article. Review.
[Micronutrients in pregnancy].
Pietrzik K, Prinz-Langenohl R, Thorand B. Pietrzik K, et al. Z Geburtshilfe Neonatol. 1997;201 Suppl 1:21-4. Z Geburtshilfe Neonatol. 1997. PMID: 9410525 Review. German.
Micronutrients in pregnancy: current knowledge and unresolved questions.
Berti C, Biesalski HK, Gärtner R, Lapillonne A, Pietrzik K, Poston L, Redman C, Koletzko B, Cetin I. Berti C, et al. Among authors: pietrzik k. Clin Nutr. 2011 Dec;30(6):689-701. doi: 10.1016/j.clnu.2011.08.004. Epub 2011 Aug 26. Clin Nutr. 2011. PMID: 21872372 Free article. Review.
Folate economy in pregnancy.
Pietrzik KF, Thorand B. Pietrzik KF, et al. Nutrition. 1997 Nov-Dec;13(11-12):975-7. doi: 10.1016/s0899-9007(97)00340-7. Nutrition. 1997. PMID: 9433714 Review.
Research goals for folate and related B vitamin in Europe.
Finglas PM, de Meer K, Molloy A, Verhoef P, Pietrzik K, Powers HJ, van der Straeten D, Jägerstad M, Varela-Moreiras G, van Vliet T, Havenaar R, Buttriss J, Wright AJ. Finglas PM, et al. Among authors: pietrzik k. Eur J Clin Nutr. 2006 Feb;60(2):287-94. doi: 10.1038/sj.ejcn.1602315. Eur J Clin Nutr. 2006. PMID: 16251882 Review.
177 results