RT Journal Article SR Electronic T1 Colon Transit Scintigraphy in Health and Constipation Using Oral Iodine-131-Cellulose JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 985 OP 989 VO 31 IS 6 A1 Richard G. McLean A1 Richard C. Smart A1 David Gaston-Parry A1 Suzanna Barbagallo A1 Jennifer Baker A1 Norman R. Lyons A1 Catherine E. Bruck A1 Denis W. King A1 David Z. Lubowski A1 Nicholas A. Talley YR 1990 UL http://jnm.snmjournals.org/content/31/6/985.abstract AB