1. Departments of Epidemiology and Biostatistics, The Johns Hopkins University School of Hygiene and Public Health
Health, Baltimore, MD.
2. Division of Biostatistics, UCLA School of Public Health
LOB Angeles, CA.
3. Departments of Infectious Diseases and Microbiology/ Epidemiology, Graduate School of Public Health, University of Pittsburgh
Pittsburgh, PA.
4. Cancer Center Biometry Section, Northwestern University Medical School
Chicago, IL.