the Nuclear Regulatory Com mission (NRC) by the Society ofNuclear Medicine and the American College ofNuclear Physiciansover four years ago is finally getting some response. The reaction from the peti tion's original author, however, has been less than favorable. Carol S. Marcus, PhD, MD, Director of Nuclear Medicine and Outpatient Clinic atHarbor-UCLAMedicalCenter and the principalauthorof the...