Market mechanisms, efficiency, processing and public health risks in peri-urban dairy product markets: Synthesis of findings from Ghana and Tanzania - Omore, Amos O.; Staal, Steven J.; Osafo, E.L.K.; Kurwijila, Lusato R.; Barton, David N.; Mdoe, N.S.Y.; Nurah, G.K.; Aning, G. (International Livestock Research Institute, 2004)