[1] TORONTO WESTERN HOSP,DIV NEUROL,NEUROOPHTHALMOL UNIT,399 BATHURST ST,TORONTO M5T 2S8,ONTARIO,CANADA
[2] TORONTO WESTERN HOSP,PLAYFAIR NEUROSCI UNIT,TORONTO M5T 2S8,ONTARIO,CANADA
[3] UNIV TORONTO,DEPT MED,TORONTO M5S 1A1,ONTARIO,CANADA
[4] UNIV TORONTO,DEPT OPHTHALMOL,TORONTO M5S 1A1,ONTARIO,CANADA