1. Princess Margaret Cancer Center University Health Network Toronto Ontario Canada
2. Department of Medical Biophysics University of Toronto, Faculty of Medicine Toronto Ontario Canada
3. Dartmouth‐Hitchcock Medical Center, Dartmouth College, Thayer School of Engineering Hanover New Hampshire
4. Department of Engineering Physics École Polytechnique De Montreal Montreal Quebec Canada
5. Department of Neurosurgery Dartmouth Hitchcock Medical Center Lebanon New Hampshire