RT Journal Article SR Electronic T1 Comparison of Oral Iodine-131-Cellulose and Indium-111-DTPA as Tracers for Colon Transit Scintigraphy: Analysis by Colon Activity Profiles JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1668 OP 1674 VO 32 IS 9 A1 Richard C. Smart A1 Richard G. McLean A1 David Gaston-Parry A1 Suzanna Barbagallo A1 Catherine E. Bruck A1 Denis W. King A1 David Z. Lubowski A1 Nicholas A. Talley YR 1991 UL http://jnm.snmjournals.org/content/32/9/1668.abstract AB