Diaz, F; García Lescano, Héctor Hugo; Gilman, Robert Hugh; Gonzales, A; Castro, M; Tsang, V; Pilcher, J; Vasquez, L; Lescano, M; Cárcamo Cavagnaro, César Paul Eugenio(Oxford University Press, 1992)
Finch, M. J.; Franco, A.; Gotuzzo Herencia, José Eduardo; Carrillo, Carlos; Benavente, L.; Wasserman, S. S.; Levine, M. M.; Morris, J. G.(American Society of Tropical Medicine and Hygiene, 1992)