Williams, R. Joel; Bryan, Ralph T.; Mills, James N.; Palma, R. Eduardo; Vera, Ivan; De Velasquez, Floria; Baez, Eugenio; Schmidt, Wesley E.; Figueroa, Ruben E.; Peters, Clarence J.; Zaki, Sherif R.; Khan, Ali S.; Ksiazek, Thomas G.(American Society of Tropical Medicine and Hygiene, 1997)