[1] Univ Idaho, Dept Mech Engn, 875 Perimeter Dr, Moscow, ID 83844 USA
[2] Marquette Univ, Dept Biomed Engn, Milwaukee, WI 53201 USA
[3] Smith Coll, Picker Engn Program, Northampton, MA 01063 USA
[4] Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA
[5] Rose Hulman Inst Technol, Dept Biomed Engn, Terre Haute, IN 47803 USA
[6] Univ Florida, Engn Innovat Inst, Gainesville, FL 32611 USA