1. Mayo Clinic College of Medicine and Science Mayo Clinic 200 First Street SW Rochester MN 55905 USA
2. Department of Neurologic Surgery Mayo Clinic 4500 San Pablo Rd. Jacksonville FL 32224 USA
3. Department of Pathology University of Pittsburgh School of Medicine 200 Lothrop Street Pittsburgh PA 15213 USA
4. Departments of Biomedical Engineering, Neurosurgery, Oncology, Ophthalmology, Materials Science and Engineering, and Chemical and Biomolecular Engineering, Translational Tissue Engineering Center, Bloomberg‐Kimmel Institute for Cancer Immunotherapy, Institute for Nanobiotechnology Johns Hopkins University School of Medicine 400 N. Broadway, Smith 5017 Baltimore MD 21231 USA
5. Departments of Otolaryngology‐Head and Neck Surgery/Audiology Neuroscience, Cancer Biology, and Anatomy Mayo Clinic 4500 San Pablo Rd. Jacksonville FL 32224 USA