1. Dana-Farber Cancer Institute, Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, United States
2. Department of Physics, School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
3. Carl Zeiss NTS, LLC, One Corporation Way, Peabody, Massachusetts 01960, United States
4. Department of Immunology and Infectious Disease, Harvard School of Public Health, Boston, Massachusetts 02115, United States