Testing umbilical cords for funisitis due to Treponema pallidum infection, Bolivia.

por Guarner, J, Southwick, K, Greer, P, Bartlett, J, Santander, A, Blanco, S, Pope, V, Levine, W, Zaki, S
Publicado 2000

Factors contributing to the emergence of Escherichia coli O157 in Africa.

por Effler, E, Isaäcson, M, Arntzen, L, Heenan, R, Canter, P, Barrett, T, Lee, L, Mambo, C, Levine, W, Zaidi, A, Griffin, P M
Publicado 2001