1. Department of Ophthalmology, University of Alexandria, Alexandria, Egypt
2. Ocular Oncology Service, Princess Margaret Cancer Centre, Toronto, ON, Canada
3. IIS-Aragon, Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
4. Department of Ophthalmology, Ocular Oncology Service, Fundacion Banco de Ojos Fernando Oca Del Ville, Asunción, Paraguay
5. Department of Pathology, University of Toronto, University Health Network, Toronto, ON, Canada
6. Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada