%0 Journal Article %T Effectiveness of Heparin during Long-Term Tocolysis %A Tetsunori Inagaki %A Shintaro Makino %A Takashi Yorifuji %A Motoi Sugimura %J ISRN Obstetrics and Gynecology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/650532 %U http://dx.doi.org/10.1155/2013/650532