RT Journal Article SR Electronic T1 Nasogastric Suction to Improve Gastrointestinal Scanning JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 374 OP 374 VO 15 IS 5 A1 James P. Polga YR 1974 UL http://jnm.snmjournals.org/content/15/5/374.abstract AB