Erwin Paul C, Bemis David A, McCombs Scott B, Sheeler Lorinda L, Himelright Inga M, Halford Sandy K, Diem Lois, Metchock Beverly, Jones Timothy F, Schilling Melisse G, Thomsen Bruce V
Emerg Infect Dis. 2004 Dec;10(12):2258-10. doi: 10.3201/eid1012.040094.