Improving function in age-related macular degeneration: design and methods of a randomized clinical trial.
Rovner BW, Casten RJ, Hegel MT, Massof RW, Leiby BE, Tasman WS. Improving function in age-related macular degeneration: design and methods of a randomized clinical trial. Contemp Clin Trials. 2011 Mar; 32(2):196-203.