1. Department of Life Sciences, Texas A&M University-Corpus Christi, Center for the Sciences, 130B, 6300 Ocean Drive, Unit 5802, Corpus Christi, TX 78412, USA
2. Department of Medical Biochemistry, University of Benin, Benin City, Nigeria
3. Department of Pathology, Clinical Chemistry Division, University of Texas Medical Branch, Galveston, TX, USA