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Journal
Gynecol Obstet Invest
Volume
60
Issue
4
Pages
206-12
Publication year
2005
Suggested citation
Kim YJ, Lee BE, Park HS, Kang JG, Kim JO, Ha EH. Risk factors for preterm birth in Korea: a multicenter prospective study. Gynecol Obstet Invest. 2005; 60(4): 206-12.