1. Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
2. Advanced Cytometry Instrumentation Systems, LLC, 19 Elm Street, Buffalo, New York 14203, United States
3. Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
4. Thermo Fisher Scientific, 2 Radcliff Road, Tewksbury, Massachusetts 01876, United States