BMC Health Services Research
http://www.biomedcentral.com/bmchealthservres/content
(Accessed 4 July 2015)
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Study protocol
Protocol for the evaluation of a free health insurance card scheme for poor pregnant women in Mbeya region in Tanzania: a controlled-before and after study
Josephine Borghi, Kate Ramsey, August Kuwawenaruwa, Jitihada Baraka, Edith Patouillard, Ben Bellows, Peter Binyaruka, Fatuma Manzi BMC Health Services Res