The risk and timing of tuberculosis diagnosed in smear-negative TB suspects: a 12 month cohort study in Harare, Zimbabwe
Munyaradzi Dimairo,
Peter MacPherson,
Tsitsi Bandason,
Abbas Zezai,
Shungu S. Munyati,
Anthony E. Butterworth,
Stanley Mungofa,
Simba Rusikaniko,
Katherine Fielding,
Peter R. Mason,
Elizabeth L. Corbett
January, 2010