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Study Protocol. IDUS – Instrumental delivery & ultrasound. A multi-centre randomised controlled trial of ultrasound assessment of the fetal head position versus standard care as an approach to prevent morbidity at instrumental delivery

Deirdre J Murphy, Gerard Burke, Alan A Montgomery, Meenakshi Ramphul* and The IDUS StudyGroup

BMC Pregnancy and Childbirth 2012, 12:95  doi:10.1186/1471-2393-12-95