Jung-Hwa Park, Dawn Chung, Hee-Young Cho, Young-Han Kim, Ga-Hyun Son, Yong-Won Park, Ja-Young Kwon

Obstet Gynecol Sci.2013;56(1):8-14.   Published online 2013 January 9     DOI: http://dx.doi.org/10.5468/OGS.2013.56.1.8