Effect of maternal age on blood loss during parturition: a retrospective multivariate analysis of 10,053 casesJournal of Perinatal Medicine - Tập 31 Số 3 - 2003
Akihide Ohkuchi, Tamaho Onagawa, Rie Usui, Tomoyuki Koike, Mitsuhiro Hiratsuka, Akio Izumi, Takashi Ohkusa, Shigeki Matsubara, Ikuo Sato, Mitsuaki Suzuki, Hisanori Minakami