[1] Oregon Hlth & Sci Univ, Ctr Hlth Res, Kaiser Permanent NW, Portland, OR 97227 USA
[2] NW Permanente PC Kaiser Sunnsyde Med Ctr, Portland, OR USA
[3] Vet Adm Greater Los Angeles Healthcare Syst, Vet Integrated Palliat Program, Los Angeles, CA USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90024 USA
[5] Univ Arizona, Coll Pharm, Behav Measurement Shared Serv, Tucson, AZ 85721 USA
[6] Univ Arizona, Coll Publ Hlth, Behav Measurement Shared Serv, Tucson, AZ 85721 USA
[7] Arizona Canc Ctr, Tucson, AZ 85721 USA
[8] Mayo Clin, Rochester, MN USA
[9] Evanston NW Healthcare, Ctr Outcomes Res & Educ, Evanston, IL USA
[10] Northwestern Univ, Feinberg Sch Med, Evanston, IL 60208 USA
[11] Barts & London Natl Hlth Serv Trust, St Bartholomews Hosp, Barts & London Palliat Care Team, London, England
[12] Emory Univ, Rollins Sch Publ Hlth, Atlanta, GA 30322 USA
[13] SUNY Stony Brook, Univ Hosp, Div Surg Oncol, Stony Brook, NY 11794 USA
[14] So Arizona Vet Affairs Hlth Care Syst, Amer Canc Soc, Tucson, AZ USA
[15] Univ Arizona, Coll Med, Tucson, AZ 85721 USA