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Barbara Janowitz, Jane Chege, Andrew Thompson, Naomi Rutenberg, Rick Homan, Community-Based Distribution in Tanzania: Costs and Impacts of Alternative Strategies to Improve Worker Performance, International Family Planning Perspectives, Vol. 26, No. 4 (Dec., 2000), pp. 158-160+193-195
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Janowitz et al. (2000) studied this question.
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