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Ipek Gurol-Urganci*, David A Cromwell, Leroy C Edozien, Gordon CS Smith, Chidimma Onwere, Tahir A Mahmood, Allan Templeton and Jan H van der Meulen
* Corresponding author: Ipek Gurol-Urganci ipek.gurol@lshtm.ac.uk
BMC Pregnancy and Childbirth 2011, 11:95 doi:10.1186/1471-2393-11-95
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