Incidence of tuberculosis and the predictive value of ELISPOT and Mantoux tests in Gambian case contacts. oleh Philip C Hill, Dolly J Jackson-Sillah, Annette Fox, Roger H Brookes, Bouke C de Jong, Moses D Lugos, Ifedayo M Adetifa, Simon A Donkor, Alex M Aiken, Stephen R Howie, Tumani Corrah, Keith P McAdam, Richard A Adegbola