[1] Univ Calif Sacramento, Davis Eye Ctr, Dept Ophthalmol & Vis Sci, Sacramento, CA USA
[2] Univ Calif Davis, Clin & Translat Sci Ctr, Dept Publ Hlth Sci, Div Biostat, Sacramento, CA USA
[3] Univ Calif Davis, Sch Med, Sacramento, CA USA
[4] Univ Calif Sacramento, Davis Eye Ctr, Dept Ophthalmol & Vis Sci, 860 & St,Suite 2400, Sacramento, CA 95817 USA