Long E G, Birkness K A, Newman G W, Quinn F D, Ewing E P, Bartlett J H, King C H, Yakrus M A, Horsburgh C R
National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
Ann N Y Acad Sci. 1996 Oct 25;797:255-6. doi: 10.1111/j.1749-6632.1996.tb52969.x.