Dynamics of sputum conversion during effective tuberculosis treatment: A systematic review and meta-analysis. oleh Claire J Calderwood, James P Wilson, Katherine L Fielding, Rebecca C Harris, Aaron S Karat, Raoul Mansukhani, Jane Falconer, Malin Bergstrom, Sarah M Johnson, Nicky McCreesh, Edward J M Monk, Jasantha Odayar, Peter J Scott, Sarah A Stokes, Hannah Theodorou, David A J Moore