| Literature DB >> 21962944 |
Ruth Richardson, Aarti Sharma, Robert Hammond.
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Year: 2011 PMID: 21962944 DOI: 10.1016/j.ejogrb.2011.08.001
Source DB: PubMed Journal: Eur J Obstet Gynecol Reprod Biol ISSN: 0301-2115 Impact factor: 2.435