Investigator's Guide   The MRI  Research Investigator's Guidelines are being revised.  Links to Investigator reference materials will be provided from this site in the near future.  In the Interim period, please contact the MRI Office of Regulatory Affairs (ORA) for further information regarding the conduct of human subject's research at MRI Institutions or IRB policies, procedures, and processes.  Thank you.   Office of Regulatory Affairs MedStar Research Institute 6495 New Hampshire Avenue, Suite 201 Hyattsville, MD  20783 Local Phone:  301/560-7339 Toll free Phone:  800/793-7175 Fax:  301/560-7336