RT Journal Article SR Electronic T1 Concerns with Low Level Ionizing Radiation: Rational or Phobic? JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 17A OP 26A VO 31 IS 7 A1 Yalow, Rosalyn S. YR 1990 UL http://jnm.snmjournals.org/content/31/7/17A.abstract AB