1. Arizona State University, Tempe, United States
2. Arizona State University, Tempe, United States and Gazi University, Ankara, Turkey
3. Department of Population Health Sciences, Georgia State University, Atlanta, United States
4. Tulane University, New Orleans, United States
5. University of Arkansas, Fayetteville, United States
6. Università degli Studi di Torino, Torino, Italy