[1] Vet Affairs Med Ctr, Med Serv P3ID, Infect Dis Sect, Portland, OR 97207 USA
[2] Oregon Hlth & Sci Univ, Sch Med, Dept Med, Div Infect Dis, Portland, OR 97201 USA
[3] Univ Hawaii, John A Burns Sch Med, Honolulu, HI 96822 USA
[4] Honolulu Vet Affairs Med Ctr, Geriatr Rehabil & Extended Care Div, Honolulu, HI USA