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 NCBI Filters

Results by year

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

Year Number of Results
1957 1
1958 1
1959 2
1963 1
1965 2
1967 1
1968 1
1971 1
1972 1
1973 1
1976 1
1979 2
1980 1
1981 1
1984 2
1985 2
1988 1
1989 4
1990 4
1991 2
1992 5
1993 5
1994 5
1995 5
1996 8
1997 5
1998 4
1999 5
2000 5
2001 5
2002 10
2003 13
2004 20
2005 20
2006 20
2007 20
2008 13
2009 16
2010 26
2011 19
2012 27
2013 32
2014 34
2015 27
2016 32
2017 25
2018 33
2019 32
2020 41
2021 38
2022 32
2023 16
2024 4

Text availability

Article attribute

Article type

Publication date

Search Results

581 results

Results by year

Filters applied: . Clear all
Page 1
Effect of Folic Acid and Zinc Supplementation in Men on Semen Quality and Live Birth Among Couples Undergoing Infertility Treatment: A Randomized Clinical Trial.
Schisterman EF, Sjaarda LA, Clemons T, Carrell DT, Perkins NJ, Johnstone E, Lamb D, Chaney K, Van Voorhis BJ, Ryan G, Summers K, Hotaling J, Robins J, Mills JL, Mendola P, Chen Z, DeVilbiss EA, Peterson CM, Mumford SL. Schisterman EF, et al. Among authors: perkins nj. JAMA. 2020 Jan 7;323(1):35-48. doi: 10.1001/jama.2019.18714. JAMA. 2020. PMID: 31910279 Free PMC article. Clinical Trial.
Preconception Blood Pressure and Its Change Into Early Pregnancy: Early Risk Factors for Preeclampsia and Gestational Hypertension.
Nobles CJ, Mendola P, Mumford SL, Silver RM, Kim K, Andriessen VC, Connell M, Sjaarda L, Perkins NJ, Schisterman EF. Nobles CJ, et al. Among authors: perkins nj. Hypertension. 2020 Sep;76(3):922-929. doi: 10.1161/HYPERTENSIONAHA.120.14875. Epub 2020 Aug 3. Hypertension. 2020. PMID: 32755413 Free PMC article. Clinical Trial.
Cesarean section.
Frazer GS, Perkins NR. Frazer GS, et al. Among authors: perkins nr. Vet Clin North Am Food Anim Pract. 1995 Mar;11(1):19-35. doi: 10.1016/s0749-0720(15)30507-7. Vet Clin North Am Food Anim Pract. 1995. PMID: 7796334 Review.
Equine reproductive pharmacology.
Perkins NR. Perkins NR. Vet Clin North Am Equine Pract. 1999 Dec;15(3):687-704, x. doi: 10.1016/s0749-0739(17)30139-6. Vet Clin North Am Equine Pract. 1999. PMID: 10589474 Review.
Disbudding goat kids.
Harwood D, Perkins N, Dustan B. Harwood D, et al. Among authors: perkins n. Vet Rec. 2016 Dec 10;179(23):606. doi: 10.1136/vr.i6558. Vet Rec. 2016. PMID: 27932732 No abstract available.
NF-κB and the cell cycle.
Ledoux AC, Perkins ND. Ledoux AC, et al. Among authors: perkins nd. Biochem Soc Trans. 2014 Feb;42(1):76-81. doi: 10.1042/BST20130156. Biochem Soc Trans. 2014. PMID: 24450631 Review.
Association of Renin Angiotensin Aldosterone System Inhibitors and Outcomes of Hospitalized Patients With COVID-19.
Gupta N, Settle L, Brown BR, Armaignac DL, Baram M, Perkins NE, Kaufman M, Melamed RR, Christie AB, Danesh VC, Denson JL, Cheruku SR, Boman K, Bansal V, Kumar VK, Walkey AJ, Domecq JP, Kashyap R, Aston CE; Society of Critical Care Medicine Discovery Viral Infection and Respiratory Illness Universal Study (VIRUS): COVID-19 Registry Investigator Group. Gupta N, et al. Among authors: perkins ne. Crit Care Med. 2022 Oct 1;50(10):e744-e758. doi: 10.1097/CCM.0000000000005627. Epub 2022 Jul 27. Crit Care Med. 2022. PMID: 35894609 Free PMC article.
TWO AUTHORS REPLY.
Perkins NJ, Schisterman EF. Perkins NJ, et al. Am J Epidemiol. 2016 Oct 1;184(7):554. doi: 10.1093/aje/kww092. Epub 2016 Sep 12. Am J Epidemiol. 2016. PMID: 27620451 Free PMC article. No abstract available.
Regulation of cyclin D1 gene expression.
Witzel II, Koh LF, Perkins ND. Witzel II, et al. Among authors: perkins nd. Biochem Soc Trans. 2010 Feb;38(Pt 1):217-22. doi: 10.1042/BST0380217. Biochem Soc Trans. 2010. PMID: 20074063 Review.
581 results