[1] VA Salt Lake City Hlth Care Syst, Informat Decis Enhancement & Analyt Sci IDEAS Ctr, 500 Foothill Dr,Bldg 2, Salt Lake City, UT 84148 USA
[2] Univ Utah, Sch Med, Div Epidemiol,Dept Internal Med, Program Addict Res Clin Care Knowledge & Advocacy, 295 Chipeta Way, Salt Lake City, UT 84132 USA
[3] Univ Utah, Sch Med, Dept Internal Med, Div Gen Internal Med, 30 N 1900 E 5R341, Salt Lake City, UT 84132 USA
[4] Univ Utah, Sch Med, Dept Obstet & Gynecol, 30 N 1900 E 2B300, Salt Lake City, UT 84132 USA
[5] Jesse Brown VA Med Ctr, Med Serv, 820 S Damen Ave, Chicago, IL 60612 USA
[6] Univ Illinois, Dept Med, Div Acad Internal Med & Geriatr, 840 South Wood St,CSN 440, Chicago, IL 60612 USA
[7] Edward Hines Jr VA Hosp, Ctr Innovat Complex Chron Hlthcare, 5000 5th Ave, Hines, IL USA