Medical professionals Resources for medical professionals Request health data How to request health data from the Department of Public Health. Apply for an Urban Health Policy Fellowship How to apply for a two-year fellowship with the Department of Public Health. Submit a study to the Health Commissioner’s Office Review Committee How to submit a research proposal, manuscript, or abstract to the Health Commissioner's Office (HCO) Review Committee. Report an infectious disease (for health care providers) Health care providers can report an infectious disease to the Department of Public Health. Submit a research study to the Institutional Review Board (IRB) How to submit a study for approval by Philadelphia's Institutional Review Board (IRB).