[1] NCI, TUMOR CELL BIOL LAB, BLDG 37, RM 6A09, BETHESDA, MD 20205 USA
[2] LITTON BIONET INC, DEPT CELL BIOL, KENSINGTON, MD 20895 USA
[3] VET ADM WADSWORTH MED CTR, NEUROL SERV, LOS ANGELES, CA 90073 USA
[4] MASSACHUSETTS GEN HOSP, INFECT DIS UNIT, BOSTON, MA 02114 USA
[5] NEW ENGLAND DEACONESS HOSP, DEPT MED, BOSTON, MA 02215 USA
[6] UNIV HOSP ZURICH, DEPT MED, CH-8091 ZURICH, SWITZERLAND
[7] UNIV HOSP ZURICH, INST MED MICROBIOL, CH-8091 ZURICH, SWITZERLAND
[8] MT SINAI MED CTR, MED CTR, DEPT MED, MIAMI BEACH, FL 33140 USA
[9] MT SINAI MED CTR, MED CTR, DEPT DERMATOL, MIAMI BEACH, FL 33140 USA