1. Department of Sociomedical Sciences, Mailman School of Public Health; Columbia University; New York NY USA
2. Department of Public Health Sciences, Miller School of Medicine; University of Miami; Miami FL USA
3. School of Social Service Administration; University of Chicago; Chicago IL USA
4. School of Dental Medicine; University at Buffalo; Buffalo NY USA
5. College of Dental Medicine; Nova Southeastern University; Fort Lauderdale FL USA