The University of Chicago Medical Center's neurosurgery training program has been placed on probation for two years by the Accreditation Council for Graduate Medical Education. The Council on June 19 placed the program on probation until June of 2011 when it will be reviewed again. The program, one of the oldest in the country, trains about a dozen neurosurgery residents at any given time. The Chicago-based council would not disclose specific reasons for the decision, citing laws protecting the confidentiality of "information gathered in the peer review process," said Accreditation Council spokeswoman Julie Jacob.