Defining operational research priorities to improve malaria control and elimination in sub-Saharan Africa: results from a country-driven research prioritization setting process oleh Roger Tine, Samantha Herrera, Mouhamed Ahmed Badji, Kyle Daniels, Pascal Ndiaye, Cara Smith Gueye, Fassiatou Tairou, Laurence Slutsker, Jimee Hwang, Evelyn Ansah, Megan Littrell, The Malaria Operational Research Prioritization Partnership