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Publisher: John Wiley & Sons Inc
E-ISSN: 1471-0528|122|4|558-563
ISSN: 1470-0328
Source: BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Vol.122, Iss.4, 2015-03, pp. : 558-563
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
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