1. Department of Human Development and Family Studies; Texas Tech University; Lubbock Texas
2. Department of Physiology, Faculty of Medicine; University of Peradeniya; Peradeniya Sri Lanka
3. Department of Mathematics; US Military Academy; West Point New York
4. COS & Associates Ltd; Central Hong Kong
5. Department of Epidemiology and Biostatistics, School of Public Health - Bloomington; Indiana University; Bloomington Indiana