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

Year Number of Results
2006 1
2007 2
2009 1
2012 1
2013 1
2014 6
2015 8
2017 2
2018 3
2019 4
2020 9
2021 10
2022 3
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43 results
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Page 1
The Korean Pregnancy Outcome Study (KPOS): Study Design and Participants.
Choi H, Kwak DW, Kim MH, Lee SY, Chung JH, Han YJ, Park HJ, Kim MY, Cha DH, Koo S, Lim JY, Ryu HM, Park HY. Choi H, et al. Among authors: kwak dw. J Epidemiol. 2021 Jun 5;31(6):392-400. doi: 10.2188/jea.JE20200055. Epub 2021 Feb 4. J Epidemiol. 2021. PMID: 32595182 Free PMC article.
2014 First-trimester ultrasound forum from the Korean Society of Ultrasound in Obstetrics and Gynecology.
Oh SY, Hong JS, Seol HJ, Hwang HS, Park HS, Kim K, Ko HS, Kwak DW, Kim MY, Park MH, Oh MJ, Park JS, Kim SJ; Korean Society of Ultrasound in Obstetrics and Gynecology Research Group. Oh SY, et al. Among authors: kwak dw. Obstet Gynecol Sci. 2015 Jan;58(1):1-9. doi: 10.5468/ogs.2015.58.1.1. Epub 2015 Jan 16. Obstet Gynecol Sci. 2015. PMID: 25629012 Free PMC article. Review.
43 results