[1] Vet Affairs Palo Alto Hlth Care Syst, Hlth Econ Resource Ctr, 795 Willow Rd, Menlo Pk, CA 94025 USA
[2] Vet Affairs Palo Alto Hlth Care Syst, Ctr Innovat Implementat, Menlo Pk, CA 94025 USA
[3] Stanford Univ, Div Primary Care & Outcomes Res, Sch Med, Stanford, CA USA
[4] Stanford Univ, Div Primary Care & Populat Hlth, Sch Med, Stanford, CA USA
[5] Stanford Hlth Care, Off Res Patient Care Serv, Stanford, CA USA
[6] Dept Vet Affairs, Off Connected Care Telehlth, Cent Off, Washington, DC USA
[7] Univ Calif San Diego, Sch Med, Dept Med, San Diego, CA 92103 USA