1. Department of Nursing Temple University College of Public Health Philadelphia Pennsylvania USA
2. Department of Epidemiology and Biostatistics Temple University College of Public Health Philadelphia Pennsylvania USA
3. Center for Obesity Research and Education, Department of Social and Behavioral Sciences Temple University College of Public Health Philadelphia Pennsylvania USA
4. Department of Biostatistics Virginia Commonwealth University School of Medicine Richmond Virginia USA
5. Department of Biostatistics Georgia State University School of Public Health & Byrdine F. Lewis College of Nursing and Health Professions Atlanta Georgia USA