1. 1
Department of Biological Sciences, Columbia University Medical Center, New York, NY 10032, USA
2. 2
Department of Biochemistry and Molecular Biophysics, Columbia University Medical Center, New York, NY 10032, USA
3. 4
Howard Hughes Medical Institute, Columbia University Medical Center, New York, NY 10032, USA
4. 3
Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032, USA