tokens: The recovery rates for the MB / BacT , MGIT 960 , and solid media were 91 . 6 , 87 . 4 , and 54 . 7 % , respectively , for all mycobacteria ; the recovery rates were 93 . 6 , 88 . 9 , and 63 . 4 % , respectively , for M . tuberculosis complex alone , and 87 . 5 , 84 . 4 , and 37 . 5 % , respectively , for all nontuberculous mycobacteria .