Oh, P.; Granich, R.; Scott, J.; Sunarto, M.B.H.; Joseph, M.; Stringfield, C.; Thisdell, S.; Staley, J.; Workman-Malcolm, D.; Borenstein, L.; Lehnkering, E. 2002. Human exposure following Mycobacterium tuberculosis infection of multiple animal species in a metropolitan zoo. Emerging Infectious Diseases 8 (11): 1290-1293, fig. 1, table 1.