| Affiliation: | 1. Department of Environmental and Occupational Health, Graduate School of Public Health University of Pittsburgh Pennsylvania .;2. Department of Medicine, Division of General Internal Medicine University of Pittsburgh Pennsylvania;1. Meharry Medical College Nashville, Tennessee;1. Division of General Pediatrics, The Children’s Hospital at Montefiore, Bronx, New York;2. Albert Einstein College of Medicine, Yeshiva University, Bronx, New York;3. Clinical Research Program, Boston, Massachusetts.;4. Division of Hematology/Oncology, Children’s Hospital Boston, Boston, Massachusetts.;5. Dana Farber Cancer Institute, Boston, Massachusetts.;6. PhD Program in Health Services Research, Department of Health Policy and Management, Boston University School of Public Health, Boston, Massachusetts.;7. Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts.;8. Harvard Medical School, Boston, Massachusetts. |
