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aDepartment of Obstetrics and Gynaecology, Canada bDepartment of Medicine, Canada cDepartment of Healthcare and Epidemiology, Canada dDepartment of Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada Correspondence to Dr Peter von Dadelszen, 2H30-4500 Oak Street, Vancouver, BC V6H 3N1, Canada Tel: +1 604 875 2424 ext 3054; e-mail: [email protected]
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Dadelszen et al. (2008) studied this question.
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