Nonmydriatic Ocular Fundus Imaging in Consecutive Patients With Headache in an Emergency Department.

Yan K, Alencastro Landim G, Lin MY, Pendley AM, Shanmugam N, McHenry JG, Duffield S, Adamkiewicz DV, Vo DT, Prosky J, Keadey MT, Wright DW, Dattilo M, Fischer AF, Newman NJ, Biousse V.