RT Journal Article SR Electronic T1 Sealed Sources of 99mTc Inserted into Standard Biopsy Needles and Catheters: Use in Anatomic Localization by External Radionuclide Imaging JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 743 OP 746 VO 14 IS 10 A1 Joseph P. Green A1 William L. Ashburn A1 Sheldon R. Hurwitz A1 Samuel E. Halpern YR 1973 UL http://jnm.snmjournals.org/content/14/10/743.abstract AB