1. Program for Research on Black Americans, University of Michigan, Ann Arbor, Michigan, USA
2. Edward J. Bloustein School of Planning and Public Policy, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
3. Tropical Medicine Research Institute, University of the West Indies, Kingston, Jamaica
4. Department of Behavioral Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA