The Philadelphia VA Medical Center was cited for eight apparent violations in using radioactive materials on nearly 100 veterans, federal inspectors have concluded. The Nuclear Regulatory Commission found that the Philadelphia VA staff failed to evaluate radiation doses or know when to report a mistake, according to a 16-page report. The brachytherapy team, for example, failed to check radiation doses for more than a year because a computer was unplugged from the hospital's network, the report said.