Aims and Scope
Korean Journal of Obstetrics and Gynecology (Korean J Obstet Gynecol; pISSN 2233-5188, eISSN 2233-5196) is the offi cial Journal of Korean Society of Obstetrics and Gynecology, published monthly in Korean or English. The journal publishes full-length original paper, case report, and invited review articles in the fi eld of obstetrics and gynecology. The journal aims to publish evidence-based, scientifi c and creative research materials to promote women’s health. All submitted manuscripts should be original and should not be considered by other scientifi c journals for publication at the same time.

Open Access
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Subscription Information
Korean Society of Obstetrics and Gynecology will send Korean J Obstet Gynecol for free to some important individuals and institutions. Full text PDF fi les are also available at the offi cial website (http://www.kjog.org/index.php). To order a subscription to Korean J Obstet Gynecol, please contact our editorial offi ce.