Evaluation of stool GeneXpert MTB/RIF for the diagnosis of pulmonary tuberculosis among presumptive patients in Tanzania oleh Esther Ngadaya, Godfather Kimaro, Erica Sandi, Nicholaus P. Mnyambwa, Amani Wilfred, Clara Lubinza, Coline Mahende, Nicodem Mgina, Fausta Mosha, Doulla Hassan, Sayoki Mfinanga