[1] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[2] Kaiser Permanente Colorado, Inst Hlth Res, Aurora, South Africa
[3] Univ Colorado, Sch Med, Dept Family Med, Aurora, South Africa
[4] Monash Univ, Fac Pharm & Pharmaceut Sci, Ctr Med Use & Safety, Melbourne, Vic, Australia
[5] Univ South Australia, Qual Use Med & Pharm Res Ctr, Clin & Hlth Sci, Adelaide, SA, Australia
[6] Univ Colorado, Ctr Bioeth & Humanities, Anschutz Med Campus, Aurora, South Africa
[7] Univ Colorado, Sch Med, Dept Internal Med, Aurora, South Africa
[8] Colorado Sch Publ Hlth, Dept Hlth Policy & Management, Aurora, South Africa
[9] Connolly Hosp, RCSI Hosp Grp, Dublin, Ireland
[10] 5200 Eastern Ave,Mason F Lord Bldg,Ctr Tower,Room, Baltimore, MD 21224 USA