[1] Michael E DeBakey VA Med Ctr, Ctr Innovat Qual Effectiveness & Safety, 2450 Holcombe Blvd,Suite 01Y, Houston, TX 77021 USA
[2] Baylor Coll Med, Dept Med, Houston, TX USA
[3] Baylor Coll Med, Dept Psychiat & Behav Sci, Houston, TX USA
[4] Baylor Coll Med, Dept Med, Sect Hlth Serv Res, Houston, TX USA
[5] US Dept Vet Affairs, Nutr & foodserv, Washington, DC USA
[6] Univ Minnesota, Minneapolis, MN USA