[1] VA Sepulveda Ambulatory Care Ctr, VA Greater Los Angeles HSR&D Ctr Excellence, Sepulveda, CA 91343 USA
[2] Univ Calif Los Angeles, Sch Publ Hlth, Dept Hlth Serv, Los Angeles, CA 90024 USA
[3] VA Med Ctr, VA HSR&D Ctr Excellence, Ctr Hlth Serv Res Primary Care, Durham, NC USA
[4] Duke Univ, Durham, NC USA
[5] VA Palo Alto Healthcare Syst, VA HSR&D Ctr Excellence, Ctr Healthcare Evaluat, Palo Alto, CA USA
[6] Stanford Univ, Palo Alto, CA 94304 USA
[7] Dartmouth Coll, Hitchcock Med Ctr, Dartmouth Med Sch, Hanover, NH 03756 USA
[8] Vet Hlth Adm, VA HSR&D Serv, Washington, DC USA
[9] VA Boston Healthcare Syst, VA HSR&D Serv, CIDER, Boston, MA USA
[10] VA Med Ctr, VA Natl Ctr Posttraumat Stress Disorders, White River Jct, VT USA
[11] VA Boston Healthcare Syst, Primary Care Serv Line, Boston, MA USA
[12] Boston Univ, Sch Med, Dept Med, Boston, MA 02118 USA
[13] James J Peter VA Med Ctr, VA Rehabil Res & Dev, Ctr Excellence Med Consequences Spinal Cord Injur, Bronx, NY USA
[14] Mt Sinai Sch Med, New York, NY USA
[15] VA Puget Sound Healthcare Syst, VA HSR&D Ctr Excellence, NW Ctr Outcomes Res Older Adults, Seattle, WA USA
[16] Univ Washington, Dept Med, Seattle, WA USA