PT - JOURNAL ARTICLE AU - Michael C. Theodorakis AU - William C. Groutas AU - Ted W. Whitlock AU - Khan Tran TI - Tc-99m-Labeled Polystyrene and Cellulose Macromolecules: Agents for Gastrointestinal Scintigraphy DP - 1982 Aug 01 TA - Journal of Nuclear Medicine PG - 693--697 VI - 23 IP - 8 4099 - http://jnm.snmjournals.org/content/23/8/693.short 4100 - http://jnm.snmjournals.org/content/23/8/693.full SO - J Nucl Med1982 Aug 01; 23