Open Access Research article

Trends of preterm birth and low birth weight in Japan: a one hospital-based study

Takashi Yorifuji*, Hiroo Naruse, Saori Kashima, Takeshi Murakoshi, Tsuguhiko Kato, Sachiko Inoue, Hiroyuki Doi and Ichiro Kawachi

BMC Pregnancy and Childbirth 2012, 12:162  doi:10.1186/1471-2393-12-162

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