RT Journal Article SR Electronic T1 Modification of the Schilling Test for Pediatric Studies JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 165 OP 167 VO 8 IS 3 A1 Williams, Patricia J. A1 Silberstein, Edward B. A1 Hughes, Judy A. A1 Reeder, Madonna S. A1 Thomas, Stephen R. YR 1980 UL http://tech.snmjournals.org/content/8/3/165.abstract AB Distribution of [57Co] cyanocobalamin was found to be quite inhomogeneous within the filler of dosing capsules from two manufacturers. Up to 6% of activity was found in or adhering to the capsule wall itself. A volumetric procedure for pediatric Schilling tests is described in which part of a capsule containing [57Co] cyanocobalamin is administered.