RT Journal Article SR Electronic T1 Health Hazards of Radiation Exposure in the Context of Brain Imaging Research: Special Consideration for Children JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 689 OP 698 VO 39 IS 4 A1 Monique Ernst A1 Melanie E. Freed A1 Alan J. Zametkin YR 1998 UL http://jnm.snmjournals.org/content/39/4/689.abstract AB