作者单位:Univ South Carolina, Sch Med, Dept Behav Social & Populat Hlth Sci, 607 Grove Rd, Greenville, SC[1]William S Middleton Mem Vet Adm Med Ctr, 2500 Overlook Terrace, Madison, WI 53705 USA[2]Durham Vet Affairs Hlth Care Syst, Ctr Innovat Accelerate Discovery & Practice Trans, 411 W Chapel[3]