[1] VA Portland Hlth Care Syst, Ctr Improve Vet Involvement Care, 3710 SW US Vet Hosp Rd, Portland, OR 97239 USA
[2] OHSU PSU, Sch Publ Hlth, 1810 SW 5th Ave,Suite 510, Portland, OR 97201 USA
[3] VA Salt Lake City Hlth Care Syst, Analyt Sci IDEAS Ctr, Informat Decis Enhancement, 500 Foothill Dr, Salt Lake City, UT 84148 USA
[4] Univ Utah, Div Epidemiol, Sch Med, 295 Chipeta Way, Salt Lake City, UT 84132 USA
[5] Univ Utah, Dept Internal Med, Sch Med, 295 Chipeta Way, Salt Lake City, UT 84132 USA
[6] Oregon Hlth & Sci Univ, Dept Psychiat, 3181 SW Sam Jackson Pk Rd, Portland, OR 97239 USA
[7] Oregon Hlth & Sci Univ, Dept Med, Div Gen Internal Med & Geriatr, Sect Addict Med, 3181 SW Sam Jackson Pk Rd, Portland, OR 97239 USA
[8] Vet Rural Hlth Resource Ctr Portland, VA Off Rural Hlth, 3710 SW US Vet Hosp Rd, Portland, OR 97239 USA