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The world health organization multicountry survey on maternal and newborn health: study protocol

João Paulo Souza*, Ahmet Metin Gülmezoglu, Guillermo Carroli, Pisake Lumbiganon, Zahida Qureshi and WHOMCS Research Group

BMC Health Services Research 2011, 11:286  doi:10.1186/1472-6963-11-286