1. Biophysics Graduate Program, University of Wisconsin-Madison, Madison, Wisconsin, USA; Madison, Wisconsin, USA.
2. Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, Wisconsin, USA; Madison, Wisconsin, USA.
3. Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA; and Madison, Wisconsin, USA.
4. Morgridge Institute for Research, Madison, Wisconsin, USA.