| Institution: | 1. Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA;2. Department of Neurological Surgery, University of California, San Francisco, USA;1. Department of Ophthalmology, Division of Neuro-ophthalmology, Helsinki University Central Hospital, Helsinki, Finland;2. Department of Neurosurgery, Helsinki University Central Hospital, Helsinki, Finland;1. Department of Neurosurgery, West Virginia University, Morgantown, West Virginia, USA;2. Department of Orthopaedic Surgery, West Virginia University, Morgantown, West Virginia, USA;3. School of Medicine, West Virginia University, Morgantown, West Virginia, USA |
