1. Clinical Research Manager, SC Nephrology and Hypertension Center Inc., 1184 Orangeburg Mall Circle, Orangeburg, SC.
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Cincinnati, Cincinnati, OH 45221-0071 (corresponding author).
3. Associate Professor, Dept. of Mechanical, Industrial, and Nuclear Engineering, Univ. of Cincinnati, Cincinnati, OH 45221-0072.
4. Associate Professor, Construction Management Program, Michigan State Univ., East Lasning, MI 48824-1323.
5. Professor, Dept. of Mechanical, Industrial, and Nuclear Engineering, Univ. of Cincinnati, Cincinnati, OH 45221-0072.