5Dupont B, Graybill J R, Amstrong D, et al. Fungal infection in AIDS patients[J]. J Med Vet Mycol, 1992,30(Suppl): 19
6Bechsaue C. Trends in the epidemiology of nosocomial fungal infection in the United States in acute Leukemia [J]. Infrom Infect Microbiol Chin, 1994,8(6): 363.