Kim, Young Ju; Park, Hyesook; Lee, Hwa Young; Ahn, Young-Mo; Ha, Eun Hee; Suh, Suk Hyo; Pang, Myung-Geol
ArticleIssue Date2007CitationEUROPEAN JOURNAL OF OBSTETRICS GYNECOLOGY AND REPRODUCTIVE BIOLOGY, v.133, no.1, pp 47 - 52PublisherELSEVIER IRELAND LTD