The Typhoid Fever Surveillance in Africa Program: Geospatial sampling frames for household-based studies: lessons learned from a multicountry surveillance network in Senegal, South... by Baker, S, Ali, M, Deerin, JF, Eltayeb, MA, Cruz Espinoza, LM, Gasmelseed, N, Im, J, Panzner, U, Kalckreuth, VV, Keddy, KH, Pak, GD, Park, JK, Park, SE, Sooka, A, Sow, AG, Tall, A, Luby, S, Meyer, CG, Marks, F