1. Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
2. Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.
3. Department of Biology, Stanford University, Stanford, CA 94305, USA.
4. Department of Psychiatry, Stanford University, Stanford, CA 94305, USA.
5. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley CA 94720, USA.
6. Cell Sciences Imaging Facility, Stanford University, Stanford, CA 94305, USA.
7. Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA.