1. Department of Epidemiology; University of Alabama at Birmingham; Birmingham AL
2. Department of Medicine; University of Alabama at Birmingham; Birmingham AL
3. Division of Biostatistics; School of Public Health; The University of Texas; Houston TX
4. Department of Medicine; Medical College of Wisconsin; Milwaukee WI
5. Primary Care Division; Clement J. Zablocki VA Medical Center; Milwaukee WI
6. Department of Medicine; Rutgers - Robert Wood Johnson Medical School; New Brunswick NJ
7. Department of Epidemiology; Tulane University; New Orleans LA