[1] Univ N Carolina, UNC Eshelman Sch Pharm, Div Pharmaceut Outcomes & Policy, CB 7573, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Cecil G Sheps Ctr Hlth Serv Res, Chapel Hill, NC 27599 USA
[3] Univ N Carolina, Dept Ophthalmol, Chapel Hill, NC 27599 USA
[4] Duke Univ, Sch Med, Dept Ophthalmol, Durham, NC USA
[5] Hlth Serv Res & Dev, Durham VA Med Ctr, Durham, NC USA
[6] Precis Eye Care, Baltimore, MD USA
[7] Alexor LLC, Durham, NC USA
[8] Southern New Hampshire Univ, Hlth Profess, Manchester, NH USA
[9] Univ Michigan, Ophthalmol, Ann Arbor, MI USA
[10] Johns Hopkins Univ, Ophthalmol & Int Hlth, Baltimore, MD USA