1. Department of Preventive Medicine Northwestern University Feinberg School of Medicine Chicago Illinois
2. Robert H. Lurie Comprehensive Cancer Center Northwestern University Chicago Illinois
3. Department of Dermatology Northwestern University Feinberg School of Medicine Chicago Illinois
4. Department of Medical Social Sciences Northwestern University Feinberg School of Medicine Chicago Illinois
5. Sylvester Comprehensive Cancer Center University of Miami Miami Florida
6. School of Medicine Howard University Washington District of Columbia