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

Text availability

Article attribute

Article type

Publication date

Search Results

1,316 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
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: ryan g. JAMA. 2020 Jan 7;323(1):35-48. doi: 10.1001/jama.2019.18714. JAMA. 2020. PMID: 31910279 Free PMC article. Clinical Trial.
The desire of infertile patients for multiple births.
Ryan GL, Zhang SH, Dokras A, Syrop CH, Van Voorhis BJ. Ryan GL, et al. Fertil Steril. 2004 Mar;81(3):500-4. doi: 10.1016/j.fertnstert.2003.05.035. Fertil Steril. 2004. PMID: 15037390 Free article.
An unusual cause of adolescent dysmenorrhea.
Ryan GL, Stolpen A, Van Voorhis BJ. Ryan GL, et al. Obstet Gynecol. 2006 Oct;108(4):1017-22. doi: 10.1097/01.AOG.0000237163.98010.b3. Obstet Gynecol. 2006. PMID: 17012466 Review. No abstract available.
1,316 results