Jeong, Nan-Hee; Song, Eun-Seop; Lee, Jong-Min; Lee, Kwang-Beom; Kim, Mi-Kyung; Yun, Young-Mi; Lee, Jae-Kwan; Son, Sung-Kyong; Lee, Jung-Pil; Kim, Jae-Hoon, et al.
ArticleIssue Date2009CitationACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA, v.88, no.4, pp.434 - 439PublisherWILEY