Antemortem and Postmortem Diagnoses of Bovine Tuberculosis in Southern Chad: Case of Slaughter Cattle oleh B. N. Ngandolo, C. Diguimbaye-Djaibé, B. Müller, L. Didi, M. Hilty, I. Schiller, E. Schelling, B. Mobeal, B. S. Toguebaye, A. J. Akakpo, J. Zinsstag