RT Journal Article SR Electronic T1 Gastrointestinal Transit of Technetium-99m-Labeled Cellulose Fiber and Indium-111-Labeled Plastic Particles JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 402 OP 406 VO 30 IS 3 A1 Jan L. Madsen A1 Mikael Jensen YR 1989 UL http://jnm.snmjournals.org/content/30/3/402.abstract AB