1. 1Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48823, USA
2. 2Department of Mathematics, Michigan State University, East Lansing, Michigan 48823, USA
3. 3Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48823, USA and Department of Biomedical Engineering, Michigan State University, East Lansing, Michigan 48823, USA