[1] Chapman Univ, Orange, CA 92866 USA
[2] Univ Florida, Gainesville, FL 32611 USA
[3] George Mason Univ, Fairfax, VA 22030 USA
[4] Univ Minnesota, Minneapolis, MN 55455 USA
[5] Florida Int Univ, Miami, FL 33199 USA
[6] New Mexico State Univ, Las Cruces, NM 88003 USA